"Real world" finance exists, at least nominally, to fund real business activities. People put their money in banks, who in turn loan it out to real businesses that need capital to build shit and provide services. Speculators provide at least a useful counterparty to real businesses that need to hedge, e.g. farmers selling their product in the future or airlines that need to buy jet fuel.
With crypto "finance", I don't hear about or see any of these types of activities - it's always just plowing money into a different crypto scheme.
I would be more than happy to admit I'm out of the loop and just unaware of the real business value that crypto provides. If you have any examples I'd love to hear them.