Which playing field?
I really don't know which pitch you are latching on to.
Crypto does not address the reality that people who have a lot of resources can simply buy a lot of crypto. It doesn't attempt to. There have been time periods, including now, where people with a lot of resources are ignoring crypto because the world is comfortable enough for them, and you can buy before they or their heirs do. The entire decade has been that way and it has been completely accurate, and it is also accurate that this makes a lot of people uncomfortable about the sustainability of the exchange rates.
Crypto addresses other playing fields. There are many intermediary liquid systems (cryptocurerncies) that you can use to send unlimited amounts to people anywhere in the world, and they can cash out in their own local currency. All the other systems had limits because governments controlled the financial institution running the system. This has nothing to do with you deciding to own a lot more crypto than you need at that point in time, it is also accurate that a lot of people do keep excess holdings because they realize that they never have to go back to the local currency, and realize that others will come to that same conclusion too.
There are many other areas that crypto does okay at, and is working to get better at.