The capitalist deserves to work less after all the effort and investment out in to start the company. They worked harder than an employer is allowed to demand of their employees.
Why should they keep getting rewards when they no longer do any work or do very little of it compared to amount of work done by others? That is not PoW system then, is it?
They own the company. They put in the initial work that got everything going. They hired the workers, and delegated the work. Producing the product is only one type of work.