It is.
Cornell, Princeton, and Columbia are all Top 10 CS programs.
For natural sciences, all the Ivies top the charts.
For med school, same story.
> Real elites tend toward history and art majors.
Some children of HNWI do major in history and art. Others will gladly major in STEM. Look at people like Bill Gates or half my hs.
This isn't the 80s or 90s anymore. Post-2008, top public schools have gotten as selective as Ivies were in the 2000s (7-15% acceptance rate [actually around 15-25% as BlackJack below points out]) while Ivies and Ivy Adjacent private schools (eg. UChicago, CMC, etc.) have dropped to the 1-6% acceptance rate.
Also, "elite" industries like PE, IB, Management Consulting, and VC all bias hiring in favor of STEM majors, which automatically prioritizes selective public schools like Cal, Mich, UCLA, etc.
> You already knew your friend group because you attended the same "2-300" high schools?
Pretty much. I had 2nd degree connects at just about every top university and I myself attended a top uni.
We all ended up working in the same handful of industries (Government, Media, Finance, Tech, Management Consulting, Politics) in the same handful of cities (SF, NYC, Seattle, Boston, DC) which further enhances the general alumni network as there are only a handful of top employers in each of those.