By definition, average people will make an average amount of money. It takes extraordinary people to make extraordinary amounts of money. Unfortunately, our system seems to be optimized to reward extraordinary psychopaths.
The money itself also isolates them and makes them more likely to become psychopaths, imo. It's a positive feedback loop on whatever differences allowed them to obtain that wealth, and those personality features eventually metastasize.
Capitalism is basically saying money makes everything fungible so why not calibrate everything you do into $ equivalents.