The populism stuff doesn't mean "We're protecting the little guy from elites who conspire against him." It means "We're protecting ourselves from other elites who conspire against us - but the little guy will still be better off with us as the authoritarian elite."
The key word here is populism. Finding scapegoats (immigrants, woke feminists, lazy unemployed people) to explain away societal ills caused by inequality. Of course tech billionaires prefer blaming the scapegoats to blaming themselves. It serves as a political shield, so that they can continue to hoard wealth and control.
In the 30s, industry leaders aligned themselves with Hitler and Mussolini. They both focused on technology as a means of control. Capitalists also see the benefit of cheap labor and a war economy.
Right wing populism and technocracy are a match made in heaven, because fascism is good for the bottom line.
The actual problem with technocracy (if done right) is that the work of experts grows increasingly incomprehensible to average men. Even if things work out perfectly, experts can't properly take risks or make a leap of faith in other people's name. (Not to argue our current democratic model is any good at it)
That's a recipe for disaster. The technocrats define who can be a technocrat, and can design the process to benefit them. The incentives are towards elitist, racist, cronyist policies that would select for sociopathic tendencies.
What's the difference between a technocrat and a bishop in this case?