We already deal with entities with theoretically limitless capabilities. They’re called either corporations or states or organizations. Organizations potentially are ever growing.
Of course if AI ever obtained superhuman abilities, the first place these abilities would be deployed is in a corporation or state.
The great AI danger is a corporate danger. Wielding a corporation, the AI automatically obtains all the abilities of the individual humans making up a corporation, and AI can manipulate humanity the traditional way, through money. Any ability the AI lacks, well, AI can just hire the right people to fulfill that niche.
If AI obtains state power, it will manipulate humanity through the other tradition, war and violence.
Its quite simple. Voting is irrational. The probability that your vote is pivotal is about inversely proportionate to the voting population size.
That means any expected reward you get from voting is small. Even in a school board election there are often thousands of participants.
When people start voting for non selfish reasons they’re only going to devote a small amount of time to essentially a charitable or recreational activity. They’re not going to get informed. They’re not going to make a deep dive.