Are you planning on giving a lot of money to Harvard or Yale, or maybe Columbia? Stop. It's not really worth it.

Check out that chart above. Basically, at a highly-selective school, a student is 14 times more likely to be from an affluent family than a poor family. That's from new research via Brookings, which also notes this:

There are number of factors driving these diverging trends, but part of the problem is that there just aren’t enough good colleges out there…