"Unfortunately, it does not seem politically correct to separate serious students from the thugs."
***Well, this forum is one of the last places one would look for politically correct thinking. However, this proposal drives right down the middle of sensible economics, freedom of choice, hard work generating rewards, and mainstream americans who want to push themselves. It's simply the right thing to do.
Oh, I don't disagree with your proposal, but it would still only solve the problem for a minority of students.