“So, what are the “non upper SES” sports? I’m not talking about the racial demographic of the teams. What are the sports that you equate to a lower SES high school?”
If you are talking about highly selective schools that aren’t in a BCS conference, basically all the sports. Which was my original point. The kind of kids who have the academic and athletic profile to play a sport at a school like Harvard (16% varsity athletes) or a Williams (30% varsity athletes) are pretty likely to trend upper SES.
So having a high head count athletic program is one characteristic (in addition to the others mentioned above) that will tend to keep the cost of the official need-blind admissions policy from getting out of budget control.