Don't you know? You gotta suffer for your work to matter. Everybody could work hard if working was enjoyable and well compensated.
If everyone works hard, and willingly so, how will we differentiate who's better?
And the idea of them taking on the risk is absurd. Corporations are legal constructs with the explicit intent of insulating owners from the downside risks of their companies. If they actually wanted to take on the risk, they'd just pay everyone from their checking account, if the corporation goes bankrupt, they go bankrupt.