Bitcoin was created from scratch and is worth >500B today. And by worth, I mean you can literally sell your bitcoin on one of the crypto exchanges and get real dollars back. If that is not wealth creation, I don't know what your definition of wealth creation is.
When we look at all the crypto coins, the combines value creation is >1.2 Trillion USD as per https://coinmarketcap.com/.
Wealth is the stuff that people value. Money is one of the measures we use to measure that value, particularly when talking about "wealth creation". So if public stock market valuation is considered a good measure for wealth creation, why not crypto market cap?
When we look at all the crypto coins, the combines value creation is >1.2 Trillion USD as per https://coinmarketcap.com/.