There's a consequentialist argument to refusing the money, too: you're helping Epstein launder his reputation.

By accepting his money and continuing to work with him, you're basically telling Epstein that he's free to continue raping children — that as long as he can wriggle out of the legal stuff, he won't suffer any real professional or social consequences. And instead of helping to deter other would-be Epsteins, you're sending them a message that no matter how many children they rape, they'll still be greeted warmly.