That still doesn't mean anything. Sure we know Epstein did evil, but not everything he did was evil. One should assume at least a few people he interacted with had no reason to suspect his evil actions.
Go read the article instead of nitpicking people doing the citations for you.
If you ask a known pedophile for funding and introductions while accepting favors, you can rightly be accused of bad judgment - at best.
I guess that's why the same passage says Ariely maintained the relationship long after the Epstein's pedophile convictions. Not definitive either, but pretty suggestive.