I think what I mean is to be rich is to have so much that you can spend.

And perhaps the implication is that the really rich spend wisely.

So yes, if we are using markers of an individual’s autonomy to describe their wealth, to be rich is to have so much of a particular value/concept that we can give and share it with others, i.e. I am so rich in health and time that I can freely share my energy with others without worry of it being misspent.