It’s the same topic. Lots of middle class professionals have essentially the same output as their forebears did 40 years ago. They are not expanding the pie. They are nonetheless richer in absolute terms, but have pulled away in relative terms from those that are much more productive than their fore-bearers. This is perfectly fine but for envy.
> Lots of middle class professionals have essentially the same output as their forebears did 40 years ago.
No, they have much higher output.
> They are not expanding the pie.
They are.
> They are nonetheless richer in absolute terms
They are not. It takes two incomes to do what one income used to pay for. Lots of middle class people cannot afford to even buy a house. Something most of their parents managed to do at a young age.
> but have pulled away in relative terms
Yes, this has also happened.
> those that are much more productive than their fore-bearers.
Much more productive? That's also not true.
> This is perfectly fine but for envy.
If it were envy, the middle class wouldn't be asking for better wages. They would be asking to become rich. It's not envy.