True. Also, the service industry does not create wealth, it redistributes it.
The way to create wealth is to have something to sell to another country for a profit, thus bringing in more money. That was how we became so rich after WWII. We were the only industrial nation not bombed and wiped out, When the other countries started to rebuild, we were able to produce things they needed which created our wealth.
Wealth is tangible. There are three ways to create weath: By mining it, growing it or manufacturing it.