Have you seen the balance sheet of the Federal Reserve? It's only a few trillion dollars. The Fed literally has less than what Fidelity manages. The global bond market is $100 trillion+. The derivatives market is so big and unregulated that it's unmeasurable but is estimated at $1 quadrillion+. You vastly overestimate the importance of central banks.
The only rates central banks set are on their own deposits and interbank lending. They don't set rates of return on other investments. That's what the vast market does.
The commodities markets have a bigger say on inflation than central banks do. The Bank of Japan is the best example. It's been expanding the money supply for, how long, 15 years? But inflation there has stayed abnormally low.
Is your ideology to force "elites" to acquire precious metals to back the unknown $quadrillion+ in liabilities?