This is fine if a big focus in life is your career path, but many people just want to live a comfortable life and maximizing compensation is not their priority.

This is fine if a big focus in life is your career path, but many people just want to live a comfortable life and maximizing compensation is not their priority. These people are sensitive to exploitation too, it's not just the unreasonably loyal workaholics. When you just want to live a comfortable life your priority isn't maximizing your compensation, your priority is not getting fired. You can exploit these people by putting them in a position where not doing overtime results in failure and possible dismissal. They will keep doing overtime until their ability to live a comfortable life is so negatively impacted by the overtime that it outweighs the pain of being fired. As an extra bonus the overtime they have to do ensures they have no time to search for a new employer until they get fired or resign.