While I understand that is a real risk (which is why I added my edit)... the average time someone in our company works is 45 hours with most being closer to 40

While I understand that is a real risk (which is why I added my edit)... the average time someone in our company works is 45 hours with most being closer to 40 so I don't think it is having that effect. More precisely, some people come in late (10:30 or so) and some people come in early (7AM or so)... I come in before the 7 AM people and leave after the people who came in at 10:30. But none of them work excessively. (except for me)