Possibly a different angle or perspective, would be where people in higher educational, law enforcement etc... when nearing their retirement, get in as many hours, including overtime (unnecessarily so in many cases) because the amount they are paid in retirement is based on what they made in those last years?
I've known a couple who did exactly that, and went on to get yet another high paying job after retiring from the first job.
All in pursuit of the almighty dollar.
Great post @denmarkguy , "Idiocracy" was a sleeper, but a great and (I hate to think it) possibly prophetic movie.