That's true for every aspect of US government and society; having policy set by an elected legislature answerable to the people is how democracy works. If you want things to function better, start electing people who behave honorably and act in good faith and start demanding accountability from your representatives when they don't.

(Also, don't get your hopes up about the Federal Reserve in the current climate. Just like the Supreme Court or the FBI or the EPA or the NIH, the Federal Reserve is only as good as the people in charge, and Trump is doing what he can to seize control and abuse its powers for personal gain.)