There is an ethical question in here that I don’t have an answer for. As an employee, I find a way to do my job more efficiently. Do I hand those efficiencies to my employer so I can get a pat on the head, or do I keep them to myself to make my own life less stressful? If I give them to the boss, do they even have the ability to increase my pay? Using the extra time to slack off rather than enriching the employer might be the best choice.
Edit: and now I see chillfox made the same point.