From Brave AI, so take it for what it is:
Mary Lou Retton is a retired American professional gymnast who won the gold medal in the individual all-around competition at the 1984 Summer Olympics.13 As of June 1, 2023, her net worth is estimated to be $8 million, according to multiple sources, including Celebrity Net Worth, Wikipedia, Forbes, and Business Insider.
My friend found his in laws on there, and it said they were billionaires. I don't think so.
Yeah, those “celebrity net worth” websites are not reality-based. Someone I went to high school with appears on one, and he’s told people that his number is inflated by like 5000% (and he’s not a modest sort of person who’d downplay it if it were real).