There is a bit more to being wealthy than your ability to earn. You don't have to trade currency to do it. That alone accounts for significant savings on the labor demand!
When my parents were young a million dollars was the definition of wealth. Today their home might be priced at at least that but are usually far from rich. They are better off than many others who own valuable property. There are pensioners trying to survive on a pension who own property now worth a million, or a lot more. Try telling them they are