It has nothing to do with everyone else. If you impressed your boss while sticking to a 40hr week, they'll only be impressed so long before it becomes your norm

It has nothing to do with everyone else. If you impressed your boss while sticking to a 40hr week, they'll only be impressed so long before it becomes your norm. In which case you bump up your hours to maintain your prestige. I don't buy that reasoning, just saying it goes both ways.