Education has always been a tool of "social control", in the sense that it's primary goal has always been to teach children/people how to function in their specific society and giving them the tools to do so (writing, reading, math etc) and at the same time inculcing respect for the authority (teacher) cooperation (exercices with other kids) etc. Same thing whether that education takes place in a school or not. Now of course what is being teached is heavily influenced by the social-political order in teh country, but hey you can't learn everything.
On the other hand higher education in more about social uplift imo, I went to university in France and there was a VERY STRONG emphasis on critical thinking and not just accepting things at face value. Most professors encouraged students questionning their teachings and spent hours discussing with them/us. I know that they also gave good grades if you could question their teachings with some good argumentation, and for example in economy they didn't care so much about the result as they did about the intelectual process that got you there. So even if you had a bad result for example, if your reasoning was sound you still got points.