Re: Is it true that 80% of the world's wealth in the hands of 20%?
It is true that crypto currency alone may not necessarily solve all the issues related to economic inequality, it is incorrect to say that it can't play a role in improving financial access and reducing poverty.
How crypto can improve financial access and reducing poverty when the poor people don't have money to buy crypto? 
crypto isn't a free money where you can easily claim faucet worth of $10 for every minute, if you claim Bitcoin faucet it's only give you 10 satoshi for every hour.Quote
Adoption of crypto currency will provide easy access to millions of unbanked individuals through smart phone and internet, it can potentially reduce corruption as transactions made on block chain are on a public ledger & transparent.
I believe you're live in where Bitcoin isn't become a legal tender, do you think those individuals will create their own crypto wallet rather than their bank accounts? lol, you're need bank accounts or e-wallet in order to receive cash converted from Bitcoin!Doesn't make any sense if your assumptions people wouldn't or can't create their own bank accounts since it's easy and you need it since you're still using fiat.
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Decentralization of financial system will reduce the concentration of power with a single entity, such as central bank, this can help to promote financial stability.
Again, do you think crypto is a charity that will give free coins to the poor people?