lol...The global financial system HARDLY serves 6 billion. Why are so many concerned with "banking the unbanked"? And arguably, the end product for those that do get access is pretty bad (slow, high fees, inflation-ridden).
It's also quite patronizing of you to say who and how crypto serves others.
More data on the world's unbanked/underbanked. https://globalfindex.worldbank.org/sites/globalfindex/files/...