Totally understand that and appreciate your frankness on the matter. I think your example is what one wants to aim for. But, do you know any high school athletes who were like you and didn't care about HS grades and wouldn't have understood when they got there? The challenge for the admissions department is distinguishing between the two. There are lots of great athletes who struggle with testing or don't have incredible grades, but display tremendous character and ability in things outside of their sport. It seems like you're asking for the admissions department to make their decisions based on faith that it worked in your case (and since you were admitted, actually more extreme cases than your case). I guess what I'm saying is that there's nothing wrong with admissions wanting to see evidence that the applicant would contribute to more than just the basketball or football team.
I just want to note that we're having this discussion at a point in time when major universities are dropping standardized test scores as a component to admissions. University of Chicago which ranks ahead of NU (US News and other rankings) has figured out how to maintain its academic integrity without standardized tests.
I doubt that U of C is doing it on faith. More likely they are weighing things like written recommendations and essays more heavily.
Again, in the case of bball it's on average less than four spots per year. Why can't admissions dig deeper into the candidates and determine if they'll be successful at NU?
My answer, because bias exists. First, the decision-makers are loathe to abandon a template they navigated. And, race. Because they come from a similar background to the general NU population they have no concept of what it means to come from a challenged background. They think a high school freshman year C average is the same in Winnetka as it is in East Orange, or Lawndale. And, because all those accepted to NU have perfect transcripts through all four years of high school, a kid that takes two years to get his bearings before getting decent grades doesn't deserve the pass.
I have close friends who are academics at NU. I'm sorry, I love them dearly and they are decent good people. But they have no clue.
Frankly, the school and the learning environment would be a lot better if it had more diversity forced upon it.