Real wealth and real monetary value is created and/or acquired ONLY when the members of a family (or a nation, tribe, city-state, etc.) plant, grow and/or harvest something of commercial value from the earth, extract something of commercial value from the earth, provide professional services (medical...
Some have argued that our economy wouldn't have grown as it has were we still on the gold standard. This infers that the economy is a zero sum gain and that the only way to grow is via exports with a trade deficit in our favor. Trade aside, can an economy grow with a fixed supply of money?