> If rich people have more say in what they do, why are they working instead of things that might be more "fun"? If rich people have far more leverage in their hourly earnings, why not work far fewer hours?
There's probably a correlation between being rich and being more inclined to spend time on activities which return money.
In that, ceteris paribus, having less of that inclination will reduce your probability of becoming rich.
I'd turn it around: Being rich provides you with the opportunity to spend time on activities which return more and more money, opportunities that do not exist for (or are out of reach of) the poor.
There's probably a correlation between being rich and being more inclined to spend time on activities which return money.
In that, ceteris paribus, having less of that inclination will reduce your probability of becoming rich.