Can't answer about China nor Russia, as I'm not very familiar with how their governance works, but in countries with democracy, the government is supposed to be representative of the population (which may or may not actually be the case, it's the idea at least).

Contrast that with companies and corporations, where the basic idea is "Company makes money, our decisions should support that".

I sure know where I'd put my eggs on who could potentially run AGI best, considering the options. But I'm also a believer in democracy, and would ever prefer autocracy by a government than autocracy run by companies.

So assuming worst case (we're all be living under AGI that steers us into fascism and autocracy), I'd still rather that be under entities (supposedly) controlled by people, rather than entities under shareholders and CEOs.