What innovation is "path of self-destruction"? China is moving towards the US - be it with the development of asset-backed debt instruments, China Government Bond futures, a registration-based system for stocks, defined contribution tax-advantaged retirement accounts, a substantial repo market from banks and insurance companies, the use of insurance company asset managers to spur the development of a corporate bond market, the growth of structured products such as CLOs and CDOs and the growth of alternative investment mechanisms such as private equity and venture capital, etc, etc.
All of these newer financial instruments are able to intermediate better between savers and households/corporates in need of credit for all investors at every level of risk while simultaneously, moving the risk off of financial sector balance sheets and to household balance sheets where it is less risky. It is much more efficient for the economy for savings to be used in funding corporate investment than it is for cash just to be sitting at a central bank earning interest