The comment in question didn't make a point, it provided only this unsupported opinion that happens to be flatly wrong: "It's a very different thing to have concentrated wealth and people's attention."
In fact, good buddies Thiel and Musk came from S Africa sharing similar librarian attitudes and both worked hard at circumventing the banking regulations while being part of the "PayPal mafia". They are both very keen on remodeling the government around the libertarian idea of uncountable corporate power.
“They went from scrappy guys dodging government regulation to now they are the government, in a generation” said Steve Blank... an adjunct professor of management science [1]
That cannot be done without using concentrated wealth to conquer people's attention. Sure enough, Musk proceeded to acquire Twitter at a great cost and to proclaim his idea of corporate control of speech through control of attention reach: "Freedom of speech is not freedom of reach" [2]
[1] https://www.seattletimes.com/business/how-musk-thiel-and-sac...
[2] https://www.chiefmarketer.com/twitters-musk-touts-new-freedo...
Thanks