I think a bigger factor is how the war broke up a lot of the old power structures and for a couple of decades it was really possible to get ahead even if you st

I think a bigger factor is how the war broke up a lot of the old power structures and for a couple of decades it was really possible to get ahead even if you started off poor. There was an abundance of need for labor rebuilding the world and servicing the sudden boom in consumer goods that arose from all of the technologies being developed. Those power structures have reformed and now we are back in the neofeudalism model that arises when power is allowed to ossify. There is no guarantee that a WW3 would even repeat this phenomenon.