Think of it this way. You know how there are super smart people in your class, but outside of the academic sphere, they are a total klutz.
Not saying the people scoring 9's are klutz, heck they might be a perfect person (looks, money, smarts, athletic ability, street smarts). But just a way to ease the pain about someone having a better score than you, lol.
True. We all have our strengths and weaknesses. If you're going through the hoops and hurdles to become an officer in the military, then you definitely have strengths. I didn't have very many impressive LORs, I don't have thousands of volunteer hours, and I've always had to be measured at weigh ins because I never fall within the Navy weight standards. So, as someone said earlier, it really is the "whole package" they're looking for (or else they wouldn't ask for so much information!). The ASTB/OAR may just be the first thing they look at, but they definitely don't stop there.