Right, looking for signals of "passion" has to be done carefully so it doesn't become just a proxy for socioeconomic class. This is also true when thinking about "cultural fit" within a company.

This is an interesting case where the laws around interviewing may make this harder.

What you want to measure in the interview is passion. What you can see is their accomplishment. But accomplishment is roughly passion × means. A rich person can accomplish more for the same effort because they have more power at their disposal.

But you can't easily cancel out means in the interview because you sure as hell can't ask any direct questions about their socioeconomic level, for good reason.

I agree, and I was trying to phrase my comment in a way that makes it clear (but failed!). You are right, doing CS in high school requires some amount of privilege.