But I have read a lot of social commentary from the Middle Ages and the Classical period, and I've visited a couple of highly traditionalist non-Western countries.

Of course there is an enormous selection bias here. You're reading the opinions of the tiny minority who were a) literate, b) had time to write social commentary, c) didn't have their writings burned or otherwise censored and d) were preserved for later generations by copyists. It's very difficult to tell whether they represented the CEV of their time (or anything like it). And on visiting other cultures, even in the present, I can only reflect that if you'd visited the fundie church of my childhood you'd have seen an overt culture of traditionalist paternalism/sexism, but wouldn't have seen the genuine hurt and pain of the 50% or so who really wished it wasn't like that. Being denied a public voice, you couldn't have heard them. That's kind of the point.

I've also visited a few non-Western countries in the world (on business) and to the extent the people there have voiced opinions about their situation versus ours (which was not very often), they've been rather keen to make their countries more like ours in terms of liberty, equality and the pursuit of shed loads of money.. Or leave for the West if they can. Sheer poverty sucks too.