It’s about the amount of value a person can bring as a consumer. Does the consumption of food provide more value to society than the consumption of mega yachts?

More equally distributed wealth increases the efficiency of spending (to a point) on the things that society needs to thrive.

Obviously more by a huge margin by consuming mega yachts. But that’s still pretty insignificant compared to the economic impact of the companies that they run, like Amazon, Oracle and Tesla.

Could you elaborate a bit on spending efficiency and how it relates to wealth distribution? I’m unfamiliar with that metric.