I mean, I think it is a different scenario. The kind of person who makes a billion dollars has something going on in their brain that makes them want to keep going. Think about it: by the point where they've made a billion dollars, they've long since passed on the opportunity to retire comfortably. They already had all the money they needed, and, faced with the chance to stop, they decided to stay in. They flew past $10MM, past $50MM, even $100MM—far more than anyone could ever spend unless they really tried—all while saying "no, I'm not done yet". I would not expect someone with this mentality to suddenly stop at $1 billion. They are in it for something other than reaching the point of not having to work anymore. I'm not saying I admire them, in fact it sounds like a terrifying inner life to me.
On the other hand, the rest of us, the 98.7% of people who are only working for the paycheck that allows us to do the other things we actually want to do instead of our jobs. The extent to which we work is the extent to which we must pay for those needs. Remove the need to work, and we wouldn't be working anymore—not at those jobs, anyway.
What I'm saying is, I believe non-generational billionaires are weird outliers, and we can ignore them for the purposes of this question.
Our CEO is obsessed with "engagement." He has a problem where older employees are not engaged and are retiring in droves, and the incoming employees couldn't give two shits less about the company. They keep begging retirees to return.
I think this is microcosim of our wider economy. If it is, output is going to fall off a cliff, soon.
On the other hand, the rest of us, the 98.7% of people who are only working for the paycheck that allows us to do the other things we actually want to do instead of our jobs. The extent to which we work is the extent to which we must pay for those needs. Remove the need to work, and we wouldn't be working anymore—not at those jobs, anyway.
What I'm saying is, I believe non-generational billionaires are weird outliers, and we can ignore them for the purposes of this question.