There are probably other ways to achieve the same, but the Polygon network is a very efficient means to do so. It's an implementation detail that gives a small edge to remaking and improving the financial system.
However, it could be, at the end of it, by spurring competition, we have Central Bank CBDC's bypassing the retail bank to build a relationship with all currency users instead of cryptocurrency specifically replacing the financial system. That's another way to go about it.
Cryptocurrency have demonstrated the fundamentals of technology are mature enough, the retail bank, financial institutions, and the billions of dollars they earn being an inefficient middle man recording shared facts, it's ripe for disruption from two ends - Towards complete centralisation at the central bank (blockchain or not), or towards decentralisation via cryptocurrency.
