It would be great if all societies and cultures were built in a way that everyone was supported to be their best
I think geography also plays part. Asia is more thriving because they adjust all cultures. Middle east is not welcoming towards other cultures and it is one of the black holes people are scared to immigrate. I guess cultures are kind of mirror of the "survival of the fittest" in that sense.
It is going to be interesting as the most closed of cultures are also the ones that are likely to suffer the most from an aging population.