FYI, Justice Scalia nailed this point in his dissenting opinion in Grutter. Check it out:
"...This is not,of course,an “educational benefit ” on which students will be graded on their Law School transcript (Works and Plays Well with Others:B+) or tested by the bar examiners (Q:Describe in 500 words or less your cross-racial understanding). For it is a lesson of life rather than law—essentially the same lesson taught to (or rather learned by, for it cannot be “taught ” in the usual sense)) people three feet shorter and twenty years younger than the full-grown adults at the University of Michigan Law School,in institutions ranging from Boy Scout troops to public-school kindergartens. If properly considered an “educational benefit ”at all, it is surely not one that is either uniquely relevant to law school or uniquely “teachable ” in a formal educational setting..."