Adding to @JoelShoe’s points. It seems that underprivileged/URM/undocumented students attending these affluent schools will have adversity scores that do not fully reflect their adversity/true circumstances.
I am still working on understanding the factors that CollegeBoard is using to calculate the adversity score, but it doesn’t seem that there is any individual level detail in that score which would not already be in one’s application. CollegeBoard’s added factors seem to be at the school and census tract data levels, so not individualized—meaning the students that attend these types of schools and have highly adverse circumstances, are not going to have adversity scores that fully reflect the reality of their situations—because their census tract is much more affluent than the student’s true circumstance.
BTW 26 New Trier students from class of 2018 attended Michigan. 90 to UIUC, 45 to IU, 35 to Wisc Madison, 23 to NU. Big10 country!!