All I can say is that I didn't 'set a long term goal' going into college. I just did what I was told and eventually picked a major, riding it out as the path of least resistance to graduation. Let me put it this way: given my cultural upbringing and inset fears at the time, it would have been harder to drop out of school than to stay in school. Pretty sure that holds for many college graduates.

I'm not against screening for college grads as a policy, though I think that it could limit you from finding amazing underrated candidates. I just think that popular argument about 'seeing out a long term goal' is simply not true a lot of the time, though I benefit a lot from it.