The problem is that the workers have allowed themselves to be attached to the labor, and be responsible for the output, without having any connection to the benefit of the additional output. If the labor force creates more product, and the company earns more as a result, the workers should also earn more as a result, but they don't. They just work harder for the same pay, so those at the top benefit by their increased labor.

Management should incentivize increased output. Otherwise, why bother?