These ideas just keep getting worse as things go on. What we're seeing is a push for centralized control by a few greedy people.
We might end up in a position of that kid, when “helicopters” built by such an AI will fly in.
Don’t underestimate of what you don’t know and what is achievable with the right knowledge and technology. It might be a difference of a level of a villager and a level of technological civilization able to build a helicopter.
Targeted advertisment/content are good enough to do effective oppinion control onto large parts of a population. But who cares about that if matrix multiplications could become sentient...
For controlling natural resources and destroying ideology that doesn't align with the flavour of the season.
On the other hand, something slightly better (on a log scale) than GPT-4, can be a game changer.