>However, consider how disconnected their actions are from their financial reward...
Operating at a high executive level in a corporation is necessarily abstract and disconnected. Bill Gates's most tangible actions were early on, starting the company and taking the risk and creating the first bits of the software. It's turned out that many software products have high margins once established, and high network effects as well. By the time somebody is focusing their attention on the biggest winners among the highest margin, most scalable industries, at the peak of their career success, they can forget the other less-successful founders whose products help people everyday and are awarded in more reasonable proportion. It's tough to know how many of these other founders would have even started a worthwhile business without the potential reward of wild amounts of wealth.
FWIW, I would appreciate it if co-ops were more common as a corporate structure. I've got no beef with that existing, and it is indeed possible for it to exist within the U.S. legal system. I figure that it all comes down to incentives. And as far as Bill's wealth goes he's doing a pretty good job of giving it to people in greater need of it than the average software developer.