The "locker room bonus" being greater than a win bonus is the entire point. That's the entire incentive. No one's saying that the two are mutually exclusive either. Not like you can't get both. I'm not saying he's getting paid to take a dive.
There is no "plus new inflated market value" here. Cerrone is already a fan favourite, he's not going to be a title contender at this point of his career, and casual viewers won't tune in in droves to watch every subsequent Cerrone fight the way they will with McGregor. Not to mention, he's likely approaching the end of his career.