I think that acceptance to HYP is a surrogate marker for "slickness" (and at least a solid level of intelligence), and this may in fact be what financial firms are looking for. M&A and equities trading do not require the kind of mind that wins a Nobel Prize (Swarthmore and CalTech have that pretty much covered, and MIT can't be far behind). To Sakky's above post: there is lot's of money to be made when you take a cut of large sums of money changing hands, even if you don't actually provide any goods or invent anything. Many in finance are really like glorified high-end realtors. Except for the rare commercially-successful entrepreneur, most scientists aren't in that kind of racket.