The gold standard wasn't as "stable" as you think. There were severe inflation crises during the California and Alaska gold rushes, while the Nevada silver rush made bimetallism untenable.
Your other argument is incoherent--there's no fundamental reason to build monetary policy such that it favors individual investors over the health of the economy as a whole. In fact, if people simply hoard money rather than spending and investing it, that's generally an indicator of a poor economic system that can cause the type of deflationary spirals that caused the Great Depression in the first place.
Your other argument is incoherent--there's no fundamental reason to build monetary policy such that it favors individual investors over the health of the economy as a whole. In fact, if people simply hoard money rather than spending and investing it, that's generally an indicator of a poor economic system that can cause the type of deflationary spirals that caused the Great Depression in the first place.