Though these startup founders are both directly and indirectly funded by the power structures (investment firms, think tanks, the government) maintained by these Ivy League school graduates.
Think how all these startups are getting loads of "trickled-down" money from the Fed's money printer. Look at the list of chairs of the Federal Reserve and most of them are from prestigious Ivy League schools, you get what I mean.
The take that the economic elite are mostly from Ivy League schools feels markedly different than the take that most people who found startups are from Ivy League schools.