There’s a great Dilbert cartoon today on the subject of presentee-ism. You can take a look at it here.
I have always felt that having to work much longer than your contracted hours is a sign of poor time management or that you are taking too much on and have always tried to ensure I don’t work late just for the sake of it.
It is a shame that all to often company culture is such that it is better to be a bum on a seat late into the night that just to be productive and do a good job!