Earlier quoted context omitted.
The Mafia makes (made?) a ton of profit but are a net negative on society. The better heuristic may be to consider what would be lost if the industry did not exist. Anything beyond subsistence agriculture would probably be impossible without financialization. There's a reason you had banks even in the middle ages when the average person was poor.
I agree that banks and many financial instruments are valuable and do facilitate value creation in the world. But that is the extent of it, they facilitate others to create value but do not make any on their own. They are however very well positioned to extract the profit from other industries and that is why the financial world can be so lucrative. Also, even if some financialization is beneficial that does not mean…
Facilitating value creation is value creation.