The Bill Gates Crime

Epstein said to Bill Gates, you owe me money to pay this back because it's your girlfriend. That has been taken as evidence that Epstein was sort of cleverly and subtly blackmailing Bill Gates by mentioning that he knows about Bill Gates' girlfriend. Now the weird thing is they were both so rich that that amount of money was something that normally they would not ask each other for. If you were a billionaire, would you ask your billionaire friend to reimburse you $10,000? Or would you just say, ah, let it go. I think you wouldn't even care.