Few things. First, I don't think it's obvious what the profits of changing the content distribution system would be. Like I said earlier, I'd love to see some data re how much cable companies would have to charge to per channel if they offered them a la carte to make as much money as they do now. And to make 75% as much and so forth. I suspect there wouldn't be much profit in, unless they charged pretty high prices, because it's niche. Sure, let's assume most people only want 4 or 5 channels, so it's not niche in that sense. But they don't want the same channels. Everyone wants 4 or 5 different channels What about the already niche channels, like the station that plays mostly high school sports in my area, how much would it cost a la carte. That's before even getting to a la carte shows.
The problem is, information distribution is essentially free. That's the reality these companies are looking to avoid. To distribute information, you pay for bandwith and storage--both are immensely cheap. Your question about charging for distribution is way off the mark. The only thing that there is a realistic market for is the content itself--that's the problem. The market for distribution is artificial, it's literally a construct due to the failure of government in this area.
Delivery costs should be similar to shipping a product via fed ex (But as said, cheaper.)--but instead you have these artificial constructs charging for distribution because they own the last mile or collude with companies that do (Big media controlling last mile owners). Again, it's like owning all the roads between the highways and your home. You should not HAVE to pay for products you don't want, you wouldn't accept that in any other facet of life (Except, as said, if the margins were cheap)--the only reason you DO pay for this is because the distributors own the means of distribution. If it worked as an equitable market should, the government should own the means and these distributors, like Comcast or Media companies, should simply be the method. (Again, fed ex doesn't own the road--it and a few other companies compete to bring you the product on public roads.)
I'll go into how it's obvious there are profits and why no one does it in the next response.
Second, if it is so obvious, why hasn't someone exploited it? Yes, I get it, economies of scale and barriers to entry. But there isn't zero competition. There's satellite. Some places have multiple cable providers. If there's a ton of money to be made in supplying the demand for different bundles, or a la carte, or what have you, why isn't Dish (or another established competitor) doing it?
People are attempting to exploit it, look at House of Cards--House of Cards is genuinely historic because it's the "first shot" in a long media battle that's coming. House of Cards is a high production series that is not funded by the monopoly owners who control the distribution networks. It represents the reason why Comcast and other companies were fighting so hard against Net Neutrality--because they know the allure of using programs like Netflix or HBO-Go to create sub markets is very high, because the margins are so high--and they are essentially a useless middleman exploiting artificially created arbitrage (Something markets constantly work to wipe out.) The fact is, ISP's want the internet to be more like your cable, where you pay premiums for sites like Amazon ect--the internet is the biggest threat to their little scam.
So why aren't there more house of cards or shows using netflix or amazon? Quite simply, the penetration of internet is not close to that of Dish or Cable, and since big media companies either own them, or collude with them, these are still the primary methods of delivery that every content producer needs. So going against these companies really limits your market, because they have this hold on distribution by controlling a public good (Again, something that the government should be providing.)...However, as ever year passes, you can see more and more companies are launching their own sites--and that is all because of the internet's growth.
In fact, if you saw government mandated free and open internet--you'd see far more shows like House of Cards or even things like HBOGO for sign up, because content delivery through the net would be as high, or higher, than the means by which media/cable companies deliver. Until that happens--you won't have people taking advantage, because, again, it's like Fed Ex controlling all the roads to people's homes. If Fed Ex could do that, then any manufacturer would be absolutely crazy not to make deals with Fed Ex. It's hard to even think about roads in that way, isn't it? But that's how the information field currently works, the "roads" for information are mostly controlled by private hands--and while the internet in circumventing this (Mostly because those private hands are tied by net neutrality--another little irony of government ineptness) it's slow going.
So, in short, people ARE exploiting it but not nearly the rate the profits in the field would dictate in a healthy market. However, this new exploitation is why networks are putting their shows on Amazon, or Netlflix. But the cable companies are using their monopolies (Or duopolies) to slow this down as much as possible AND still enforce their "take" (By threading the production studios if they don't pay up), and then using their money to lobby to further limit people, even other large companies, like google and especially "public" entities like townships (There are multiple stories of Comcast suing towns for trying to put in their own high speed lines--seriously, Comcast wouldn't offer it in their area but the courts actually said towns couldn't do it for themselves.). So the media companies are really doing everything they can to stop progress here. And given their size and profit capability, they have quite a bit of power.
As for why competition between say, Dish and Comcast hasn't stopped this? It's because the arbitrage of flipping content between producers and audience is the most important aspect of their market--competition is secondary. These companies collude in both their lobbying and their purchase power to prevent competition, and from what I remember, they've been fined by the FCC for doing so--but they gladly pay it from their enormous profits and simply write it out as the cost of doing business. (Seriously, look for a flow chart of media companies, I think there are like 4 separate entities in the U.S. that control hundreds of companies.)
What bugs me is the whole "pirates are their just rewards" revolutionary attitude stuff. It's bullshit rationalization. Pirates are not engaging in the proud tradition of civil disobedience, where they break the law and willingly suffer the punishment to highlight injustice. They're not downloading millions of articles off of JSTOR with an eye towards making them freely available to the public. They're not even stealing clothes because they were made in sweat shops . They're illegally downloading episodes of Game of Thrones because they don't want to pay $20 extra a month (or whatever it is) for premium cable or wait until they can buy the DVD. And then complaining about a six strike system.
There is nothing noble the spurned drug fiend who shoots the drug dealer that gave him baking powder. It's simply a side effect of not having contract enforcement. It's a natural side effect of a broken market where the government has been neutralized. In this case, these companies have worked hard to neutralize the government and further enforce their control--that's how they collude to bully production studios, and to buy up start up ISP's, or constantly break the rules in so far of how much market they own, or bully small governments (Towns) into not providing last mile service--because they've neutered the FCC and other government agencies meant to stop them.
This neutering however means the government is also inept at going after pirates, or controlling how pirating happens on the networks (Again, imagine Fed Ex owned roads...where police were NOT allowed. Oops! Pirates!)...To make money these guys wanted the government out. Now they are crying for the government to help them--if you can't find that poetic justice, then you might be immune to irony.
In other words--the Pirates are no more or less noble than the media companies. They are a product of the media companies actions. Being angry at them is silly, when it's the media companies greed that created them in the first place. It's like someone paying off the cops so they can run a protection racket, and then being angry that the cops didn't show up when their forced clients fought back.
If media wants to be the robber barons of the internet-wild west, then they should suck it up and deal with the outlaws. Their other option is to back off and let the government in. But they won't do that, because then their entire business will be dead--and all the money will actually go to the people who MAKE and deliver the content, and not some fat cat who simply has the money to scare everyone into buying through him.