This is a fairy tale... A kind but naive fairy tale about universal equality. As much as you would like, but cryptocurrency will not change the standard of living of ..
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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. 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.
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.
Of course, these potential  changes come with their own challenges and difficulties, such as, need for wide spread adoption, the development of user-friendly interfaces and reduction of volatility in crypto currency prices.

Nevertheless, it is important to consider the ways in which  crypo currency could potentially improve the financial system & promote economic equality.