>In equilibrium, people get paid according to their productivity
But where and when has there ever been this magical equilibrium?
In the real world people get paid whatever they can get away with, and some people can get away with more than others. Telecommunications execs can price gouge you and get a bonus for it.
>For the economy as a whole, abstracting away imports and exports, we can only eat what we sow.
Exactly. And "we" after all is another abstraction. And "I" can eat what "you" sowed.
If corporations have record-high profits, while workers get stagnating salaries while housing prices raise, someone is going to realize what "we" entices after all.
But where and when has there ever been this magical equilibrium?
In the real world people get paid whatever they can get away with, and some people can get away with more than others. Telecommunications execs can price gouge you and get a bonus for it.