@Diest TKO,
certainly, mental illness runs strong in his family, and he has serious addiction problems. Keeping the demons in check requires diversions.
You see that with all of the best comics, all of them have had strong dark sides. Beck's problem is that he is only so-so funny, so he has to trade down market. If he had the talent of a good stand-up or movie actor like Jim Carrey that is what he would have been.
I don't see this ending well for Beck, once he losses the endorsement of the corporate class (advertising rev) his work space is closed to him. The demons will get him in the end I think.