That speaks to another point though -- the incentive to return shareholder value, often times to the detriment to the company, the employees, the customers, and sometimes to public safety.
Well, the shareholders provided the money that allows any of it to exist at all. If there's was nothing flowing back, there'd be nothing for institutional investors. IPOs would be worthless which means there'd be no exit for VCs. Everyone would love to just get money with no obligation to give anything back, but that's not the way the world works.