A key idea here is that being poor makes you do worse at high school relative to how well you would do at university. Being stupid probably doesn't. So being mo

A key idea here is that being poor makes you do worse at high school relative to how well you would do at university. Being stupid probably doesn't. So being more generous to poorer students may result in getting an academically stronger set of students overall, whereas being more generous to stupider students won't. (I don't know how true this "key idea" actually is. I can imagine ways in which poverty might disadvantage people that would persist through their time at university. But it seems plausible prima facie.)