Maybe it's just that Ronnie knows nothing else (or perhaps this is what he enjoys most in his life), and he lives for the rush of pageant competition. For the love and adoration of schmoes.
This happens in real sports, where a "legend" can't let go. They should retire, they have nothing left to prove, and have a legacy left behind...but can't walk away. Apparently it happens with comp. bbers as well. It doesn't help matters that you've got BSN giving him shit loads of cash, to flex for crowds and appearances.
This man was at one point (arguably) the greatest flexing man in a thong, to ever come down the narcissistic pike. Now, he looks awful. He needs to let go....