In 1500s when the printing press was invented, Martin Luther (not to be confused with Martin Luther King) saw the opportunity to print "bibles for everyone" to transform everybody into a priest - an enlightened being that always (or at least mostly) does the good/right thing.

We know from history that that didn't succeed. Not everybody turned into a priest, not even close. Instead, he caused Evangelism, and is partially causal for the Thirty Years' War.

Realistically, people thinking in terms of ideas is an inclination you're born with (or so I believe). There's just a lot of people who are not gonna do that. Especially if people see themselves at a (economic) disadvantage because of it. Most people just wanna live through ordinary life.

BTW, I guess something similar happened with the internet. When the internet was first invented, people guessed that it would lead to the total education of all human beings. Instead, it has caused smartphones, "social" media (which is more antisocial media tbh), and a lot of spreading dumb narratives. So i'm not sure it really "enlightened" the people.