They watch Western/Korean/Japanese TV, but that doesn't mean they know how we live.
Anecdote from friends who spent some time in Africa, retold from memory:
African: I want to go to Europe.
German: Why do you want to go to Europe?
African: Because everyone in Europe has a house and a garden and a car.
German: That's not true. Many people don't have a house and garden or a car.
African: You are lying. I saw it on TV, with my own eyes!
Or a recent example of a Westerner in Cambodia whose wife thought that money comes out of an ATM, i.e. by some kind of sorcery he has that card that can get money out of ATM, and she can't because she is not privy to that sorcery.