I suppose working longer doesn't mean working harder. And it could set a bad example to colleagues who feel they now have to work longer. This then causes bad m

I suppose working longer doesn't mean working harder. And it could set a bad example to colleagues who feel they now have to work longer. This then causes bad morale, and if you're seen as causing bad morale then perhaps a promotion won't happen. Start looking out for people. Think of the group rather than yourself.