“That Hideous Strength” is a 1945 novel by CS Lewis, projected as taking place in the near future. The hero is assigned to write news articles (not yet explicitly recognized as propaganda) with a certain slant to condition people to accept certain social changes. These would be written for different audiences. The hero at first anticipated that the educated classes, those with more schooling, professional positions, read the British equivalent of the NY Times, would be more difficult to persuade.
Actually he found the opposite. The educated, professional classes were the most easily persuaded, most ready to swallow his manipulation. The working classes, who only read the newspaper for the football scores and maybe some human interest stories, were most stubborn, resistant.
I found the same in my social services career. Those with Masters degrees were most ready to swallow ******any ******doctrines taught by the media. The most common sense, most resistant to nonsense, were secretaries, who got as far as high school. The Bachelor degree workers could go either way.
I encourage reading this book, along with his “The Abolition of Man”, a non fiction book from WW II era covering the same material. Essentially he describes what happens with the fading of “The Natural Law” and how this was facilitated through communication.