There are numerous historical examples of societal manipulation (of the most extreme kind) that had little to do with technology.

I don't disagree about the need for policies; I just think those policies need to be directed toward humans as the weak link in the chain, not machines. This is not like gun control where a single person with a weapon can do a lot of unchecked damage, and thus access to guns needs to be controlled. Very few have access/can do damage with an algorithm.