Rich and powerful people like Epstein like to collect influence and status and part of that status is collecting novelty. This is something money can't directly buy and is exclusive so they need it like the parasites they are. Part of Epstein's appeal to these ghouls was that not only would he make you rich and get you girls but he himself was "smart" end erudite and surrounded himself with the "best and brightest." This is why he consorted with people like Hawking and Chomsky; he collected their reputations in his bag and then could tell other ghouls hey look come to the island, you can meet the most famous physicist of all time and, maybe, bang some young girls.