A book I read recently called “The 80/20 Principle” states (without strong references) that at least 80% of the wealth in every society (today and thru history) is held by 20% of the populace. The USA is about this level today. Most developed nations are even more highly concentrated — e.g. 90/10. If this is true, then it seems unlikely that we’ll achieve (in the best case) a distribution of much better than 80/20. The issue is how we ensure that the bottom 50% live in some level of dignity.