How many people actually convert being an Olympian into money that can buy a home of provide for a family? I’d say very few. And mostly those who choose to stay in sports related careers coaching and whatnot.
There is is very little financial upside to making it to the Olympics. Sure, a handful have ridden the fame into other careers. But, the vast majority do not. They are considered experts in their sport...but if being such an expert doesn’t pay, then what?