Historically, compensation for employee work product

Historically, compensation for employee work product has been (though not exclusively) in the form of a salary or wage with the assumption that higher pay means more work and happier people.

One example would be the introduction of the $5 a day by Henry Ford to combat the incredible turnover in his factories. In more recent times, research and simple observation have shown pay rate and job satisfaction are not one in the same.

Analyze an example from your text where this has shown to be the case and provide a supported opinion of why you think this paradox exists.