assuming that most finance/i-banking ppl that apply to b-school have work experience, i doubt the wall street crisis will hurt them in their admissions process. however, it may the impact those ppl just getting out of b-school since there are less jobs floating around. recent grads may have to take jobs they didnt have in mind or see themselves doing...
i myself have experience in finance and im still not discouraged from applying to b-school. i was around the street during the tech boom and 9/11 and yeah there were ppl getting let go, but within months we were hiring again...in times of turbulence there will be a need for damage control and mgmt will need to implement new strategies. for example, there's been a decline in opptys in equity research (its a crock of ****), but there was a slight uptick for more risk mgmt or derivatives research. there are always pockets of oppty within finance. so in sum, although there will be a decline in certain jobs bc of this crisis...other opptys may present themselves and ppl will still find new digs...