He isn't. You think the same sponsors will come into the UFC with the Reebok deal? Guaranteed most of the money Mayweather made were from sponsors, PPV buys is not boxings bread and butter. Conor is fucked, the most the UFC will pay him is 15-25 million and that is for the Diaz fight, against Khabib(who is a sleeper draw guaranteed if he beats ferg and becomes a champ the Russian PPV buy will make him bigger than Conor) and Ferguson(above average at best draw) he wants an easy win but Dana isn't having it. Now when it comes to stardom... casual fans are fickle as fuck if he loses against Ferg or Khabib it'll be a serious blow.