Meanwhile, 17 percent of Princeton students came from families in the top 1 percent of the income distribution, and 72 percent came from families in the top fifth of the income distribution, the highest rate in the Ivy League. That means that only a little more than a quarter of Princeton students in 2013 came from the bottom four quintiles—basically, from every group but the rich—a figure that put Princeton behind 99 percent of all American colleges in the relative number of nonrich students it enrolled. That’s not much of a revolution.

