Hga is right about the vast sums of financial aid being given to those with low family income by top schools. Everyone isn't going to an Ivy league school because (1) clearly there aren't enough spaces, and (2) everyone isn't admitted. We could discuss the structural features that contribute to 1 and 2 (mostly 2). But where I think we should be able to find agreement is that those who are admitted are cared for quite well. You might be surprised at how many of them did indeed qualify for, and receive, need-based aid.