This is hardly surprising given the greater than 100 point difference in average SAT scores between the two groups.
I doubt HBS would allow a 100 pt difference in SAT score for minority students vs. others.
Instead, you can argue, despite normalizing for SAT score and for School choice, you still show inequality via income a few years later.
Common HN opinion is that if only minorities would reach the same schools (Stanford, Harvard), they would not experience discrimination. However, as the OP shows, even adjusting for School, you end up with unexplained income variances between racial groups.
Discussed here a few weeks back in the comments:
These are facts and easily verifiable.
(It might also help if the article was even talking about undergrad and/or SAT scores.)
http://www.slate.com/articles/news_and_politics/supreme_cour...