It's called "a stupid man with money". It's really quite simple:
* He has money
* People want a share of his money
* He has enough people to tell him stuff to make his bullshit seem to have some connection with reality
* Anybody who argues with his stupid bullshit is no longer welcome and gets no chance to get a share of his money
Ugh. I worked for a guy like this, he was a full-on cybersecurity paranoiac. You need to be a special type of person with near-infinite patience of stupidity just to be able to work under them.