If They Own a Man's Work, They Own That Man
The Plutes and their heirs only own the workplace; they don't own the work. Because all the increases in profits go to the top, the people who actually produce that revenue have no motivation to work harder.
Second, as in Dilbert, they see too many clowns in management who never worked on the ground floor and are brainwashed about how easy it is, so they never bother to find out about it. Management by Imagination. "All for one, and that one all for himself."