But he has uncontested control because of an unusual dual-class share structure. And isn't the explanation for Facebook's founder-favoring structure basically that Peter Thiel wanted it that way?
My recollection is that founder-favoring share structures go in and out of fashion historically, and that Facebook rose during a period when that was popular. So yes, props to young Mark Zuckerberg for pushing for that when it was achievable.
But even Mark Zuckerberg describes himself as lucky in this regard:
“So one of the things that I’ve been lucky about in building this company is ... I kind of have voting control of the company, and that’s something I focused on early on. And it was important because, without that, there were several points where I would’ve been fired. For sure, for sure,” https://www.cnbc.com/2019/10/03/zuckerberg-if-i-didnt-have-c...
People complain that he has too much control but then also, like you, complain that he isn't behind and "real" decisions.
He made that "vast vast wealth" by building Facebook. One had to come before the other.
And it's perfectly possible that he is more responsible for the bad choices than he is for the good ones. I've dealt with execs like that. I'd bet many others have as well.
It's not easy to win the lottery either, but that doesn't make a lottery winner "one of the savviest business-people in history".
Isn't hiring the right people an extremely large part of being "business savvy"?