This is his passion. It's probably addicting going to the press conferences, setting up matches, and taking home ALL/MOST of the money.
He's a snake ass business man, he doesn't know anything else. Plus, he's probably got a boat load of mistresses/boats/houses/vacation homes/yachts/cars/house keepers/child support/various bills he needs to keep up with.
Money stops coming in, but bills don't.