[abandonliberty]

You are making the typical reasoning error of assuming that all people match a stereotype exactly, that all these people are exactly the same.

Last I checked FSF and some very powerful nerds who aren't assholes still exist.

I believe you have the order reversed. It's not that people behave like this when they get power, but that behavior like this increases the likelihood of gaining power, causing those with these behaviors rise to power disproportionately.

Examples: Trump, SV Bros