Its just politics(as is life) Lawyers tend to be white men with rich white male fathers. They try to mix that up with adding lower income, women, minorities, excons, whatever they can to spice it up. The govt gives grants based on that and the public ones in some states have quotas that are mandatory to meet. If you need a hispanic woman and the only one who applied is a 2.0 from community college with a 142 lsat, she's in.
Take the advantage, but you asked and thats why it is what it is, for better or worse I guess.