So, because they study more, and their family places more importance in studying, they should be brought down because they are not the right race?
Which is what? Studying is hard, getting academic success is hard, and there is a positive correlation for both of those and career success, as academic success requires discipline, grit, and hard work, which are all useful for career success.
The goal was to actually do a better job of finding the applicants with discipline and grit, not just the ones who have it in an academic context.