I don't know. It seems you are confounding a couple of issues. First is the scope of the article. It seems more of a policy for good practices to adhere to in treating employees. Even if you are a marathon runner, it would not be in your self-interests to require long distance running as a job criteria. Secondly is motivation. The motivations of a founder are often counter to that of an employee. From the perspective of many employees, job satisfaction is much more desirable to a high reward outcome - irrespective of dedication, hard work, or talent.