For example : Megadeaths happen with nary an eye batted in Japanese movies, but you rarely see that kind of thing in the American. And the total dominance of the aristocracy over the underclasses is as assumed and invisible as gravity in French movies, but it seems to be taboo elsewhere.
It was for a time, back in the 50s & 60s. From what I’ve heard bosses would try and set up their unmarried junior employees with a ‘good match’ too, sometimes.