Simply defined. Wealth are thumbprints which run consistently in the far green. It is easily measured. I went over that before. Charge a fee to view the optimum measurement of the bitcoin yield curve, for example. Lower the fee until you get a full up rank size tree in the distribution of red/green thumb prints looking at your data. At that point you have the significan distribution of red/green settings world wide.
Supreme wealth are the far green folks who can keep their coins in heir wallets, off the books, and be invested, they can force deflation for a time.
The limits of wealth
It is a multi currency world, subject to buyers clubs that can appear and move up the supply chain, avoiding both wealth and government fees. Home production becomes complex, streets less congested and wealth begins losing money.