Manipulating public opinion may seem petty or roundabout for a government but having legitimized policy creates a lot of stability for decision makers so it seems worthwhile. The gambit even pays off when the majority of the public isn't persuaded by education too, since the people who agree with you are by definition the "well educated" you can give their opinion more weight without seeming like a tyrant.
That's the idea being alluded to by the parent here at least I think.