Hubris
It seems these wise guys develop overconfidence from their strong network of family and crony connections, as well as the feelings of superiority and control over the public and LEAs that develops over extended periods of "getting away with it". They let their guard down and the LEAs can just scoop them up.
Of course there's a bias towards dumb in the ones that are stupid enough to get caught. The smart ones, you don't even feel the sting.
Biting the hand that feeds IT
