I assume Denny's, because your experiences are indicative of a shitty establishment or a poorly run one.
The culinary industry is a grueling fucking business. If you manage to get into a good establishment, who decided to take you and pay you because you went to school, instead of taking someone like you who will probably work for less, do more of the work (Good establishments for example NEVER let any cook other than the sous chef or executive (or pastry if the place has one) take care of anything that they need to be doing, since it's a quality consistency check, and also, because their name is stamped on every fucking plate that walks out of the kitchen) and not really look for promotion, then you know you've simply made it to the ground floor.
There's going to be a lot of those - you'll gain a name, and you'll keep working your way through, probably becoming a sous chef of another kitchen before someone takes the plunge with you and invests in your restaurant idea.
The executive chef is going to rarely work the back - he's in charge of the hiring of the staff, the menu, etc. He brings you the dishes, the sous chef executes them, and proceeds to explain the rest to everyone else.
In a well run establishment, things move like clockwork, but it's incredibly frantic, and bitching at anyone or being an ass to anyone in the back is a sure way to fuck everything up. (For example, we did nothing but praised our dish washers, because we depended on their timeliness with the pans to actually do our job.)
No one is a special snowflake in the industry - if it's something you are legitimately raising in the ranks of, then a server or dish washer cannot even compare to the fierce competition and crazy nature of it.
I'm not sure what roofers has to do with this conversation, but that kind of labor sucks in general.
You're perpetuating generalizations that are just downright retarded. There's a reason I hated servers, because they all assume, as you do, what happens in the kitchen yet they have no idea. Front of the house vs. back of the house is the oldest war in history. The difference? Some of the us were the idiots that took out loans so we could listen to a whiny cunt tell us why she hadn't the time to hit the button for "no sauce".
The times I moonlighted as a server were way better than the nights I spent in the kitchen. I bring you your fucking drink, don't fuck it up too badly, and you tip out the ass, because it's a social norm and less an indicator of excellence? Sign me up, instead of 10 hrs over a stove top.
As far as being a slut, sure I mean, if I disagree with you that means I have to be right? I didn't have time for that shit. I worked full time and went to school full time. Fortunately, my bosses in the restaurant were at least nice enough people to realize I needed SOME time to fucking sleep so my crazy shifts didn't start until after I graduated. It was super awesome the nights they didn't seem to care though, and I'd have to browbeat them into giving me cab fare because they made me stay late.
Edit: And oops my ranting probably got us off topic. Jimmies definitely rustled. My bad.