They should have simply have gone to their state school. That they didn't indicates quite a bit, imho (they think the rest of us who can't get in are subhuman, and in the Stanford case, are probably eugenicists explicitly).
You can see it in people like Dan Gross who named his venture fund after the eugenics research fund Pioneer Fund and called other people "NPCs" in a lecture that got big on HN a few years ago.
There are certainly narcissists at Stanford (and any other prestigious institution) but this desperate need to write off thousands of intelligent people based on some kind of imagined persecution is pretty weird to me.
Just for the record, I studied at a very unprestigious journalism school in Australia. But I work with many Stanford grads and in a company with it's fair share of assholes, they have all been lovely.