I believe that the factory owner does bring value to the product, as do executives and managers, of course - but in today's economy I believe that company executives and managers are taking a disproportionate share of the produced wealth. Even the owners of widely held public companies are being sacked by this group. They are out of control.
Make up your mind. Is it the evil manager class? Or.....
they are being screwed by the owner class, as the owner's take advantage of the their usually inherited positions to plunder the worker class of their activity, ingenuity, and productivity.
....Is it the evil owner class that needs to be eliminated? So that the working class can get its fair share.