Not at all. It depends on whether the work gets done. For example, if your job is fixing faults, and if you spend a lot of your time just waiting for faults to be reported, then what does it matter what you do while waiting?
I remember a TV commercial purporting to show the repairs department of some manufacturer of washing machines and similar domestic equipment, who were trying to make the point that their equipment was exceedingly reliable. These guys were sleeping on the job, waiting for the phone to ring. One day the phone did ring, and they got all excited, but it was a wrong number.
This was in the early 80s, I think. It would be unthinkable nowadays, because the idea of making reliable goods these days is just absurd.