I'm pretty convinced these days that generational wealth as a goal leads to exactly this problem. Not that I disagree that we could be using that time in more fulfilling ways, but generational wealth as a construct probably inherently means significant inequality, unless it's some utopian wealth where it's equally shared.

It's highly unlikely that any of my dreams would make me wealthy, because they all involve having fun, improving myself, and/or making the world a better place. I think most other people are the same way.

I agree, this is more than whether we work more or less efficiently with 4 or 5 days in the office. The ruling class wants us in our white cages (office walls) for as long as possible so, as you said, they can ensure we can't work on other stuff that truly satisfies us and gives us a chance of generating actual wealth rather than depending on whatever measly income they want us to live paycheck to paycheck on...