I've always been a proponent of mandatory rhetoric courses in public schools.
Hard to see how a democracy produces good results without learning Defense Against the Dark Arts.
Easiness of controlling your people is less important than making it hard for opposing parties to control them.
People, even smart people, are very, very rarely what you could call fully rounded in their reasoning and intelligence. Sure, we know that many people aren't quite as robust in certain areas of intelligence as they are in others, and on the other hand we know that some are particularly resistant to bad reasoning and dogmatic habits, but as a general trait, people of all stripes and positions, often with mostly rounded intelligence in most things, can be absolutely blind or idiotic in very specific areas of thought, to an irrational degree.
You can have a perfectly skilled engineer that is absolutely convinced the earth really is flat, or a highly capable doctor who simply won't accept any amount of evidence that AIDs is caused by a virus. Or you could have a political genius with all the pragmatism that comes with that, but who's fanatically obsessed with a very specific dogma that drags his country to ruin. Examples abound.
No amount of strong education in logic and critical thinking is going to eliminate these curious but very widespread human tendencies toward deep fissures in otherwise rounded reasoning. You might only reduce the number or depth of fissures as a tendency, but their existence in general is simply too entrenched to really be banished from our psyche.
AI gives us hope that this system will (finally!) collapse and something new will take its place. Cause it clearly doesn’t work in favor of an average man on the current civilization scale. But it’s not gonna be education and critical thinking for sure.
There’s also no reason to believe that a similar system is not already deployed by “good guys”. It’s such a low hanging fruit for politics-grade budgets that it’s almost a treason to not grab it.