He's been laundering money to the cartel the whole time. Hence the duffel bag he's always carrying between the mausoleum, strip club, etc. They'll just be able to funnel a stupid amount once the casino is up and running, because it's virtually untraceable how much cash is actually flooded in. That's why they didn't murder folks that would impair his ability to successfully setup said casino. The whole premise of the season.At this point the "cartel" is the most patient buch of people around. I find it hard to believe they aren't all separated from their heads.
His constant, "no problem, I'm handling it", prevents them from straight murdering people. They didn't hesitate killing the black drug dealer dude, or Cade when she called them up and said he was a problem. I'm curious to see what kind of scorched earth response the cartel is going to have against the KC mob...