I think this has already happened. Bitcoin and cryptocurrencies have already changed traditional economy models, not in large extent and not officialy but there is certainly some influence. Positive regulation would intiate further changes but it's hard to expect that on a global scale.
To my opinion economy based on.a blockchain technology is future but changes are happening very slowly and businesses are still reluctant to implement it.
So, let's say that businesses and private entities start to compete on intrinsic value propositions and not superficial/material value.
Let's say that there is an crypto exchange (Complies with the characteristics of a company that can earn millions of dollars with very few employees), with the same engine and quality than the rest of the available ones, that donates 20% (For the example) of profits where the same clients choose where these funds should be redirected to (They choose the donation destiny). Would you, as a user, prefer to use that platform where it provides a purpose/ethical based value proposition towards the future?
Another example...
Let's say a Mining Company, that can earn thousand and millions of dollars with less than 10 employees, donates a 20% (Again, for the example) of their profits to social and environmental impact initiatives. As an investor, would you want to invest in it? Maybe, you have less profits, but you have a clean company that starts to become important to the areas/regions they impact.
Last example...
With the digital banking era, banks can also scale 100x on clients while scaling 10x in employees. Let's say that this bank started to donate part of their profits to bancarize unbanked people, to help refugees, to donate towards social and environmental impact. Would you, as a customer, prefer to use a bank of that style or would like traditional service? (Being that the experience would be similar/the same to other digital banks)
It's interesting to understand the view of users towards their companies.
A future where more human/environmental value in the products is desired, but is it essential? Does it make the difference for clients? Do clients really want to use products/services that are helping to change the world by donating where their clients choose and paying taxes, or they don't really matter and prefer to use normal services that try to keep as much as profit and their only contribution is paying taxes?
Crypto has a lot of room to grow, but I believe government currency will remain dominant. There is just too much volatility in bitcoin to be widely used right now. Also, people like the safety that banks and credit cards provide. If your crypto gets stolen you have virtually zero chance to recover it.
Banks would need to start providing crypto services. Or crypto companies would need to provide banking services, right?