Yeah, the guy who owns the company uses his capital to produce items. Those items are the fruits of his labor. He pays his workers wages to produce those items for him. Those wages are the fruits of the workers' labor. Does he make more out of the deal? Sure. He also takes more risk as well.
Look at it this way as well. You make Blueray players for a company. Would you rather be paid in cash or Blueray players? Now, you may argue that farmers will produce food and everyone will share, but here's another problem. What if nobody has any real skin in the game? How do you motivate people? If I'm going to get paid the same whether I put together Blueray players or have the stress of running the entire company and working later hours, why would I choose the latter? Where does the motivation come from? The issue with this kind of economic policy and another issue in which Marx obviously overlooked is that there is no motivation. Why would you be in the army if you had easier options? Of course, this second paragraph doesn't have anything to do with the original discussion either. It's just an observation. Marx's plan might work in a smaller communal type setting, but it would be absolutely terrible in a larger setting.