I think having a flip attitude for other peoples time is something for the unaccomplished and unambitious. There is nothing wrong with being someone that stops and smells the roses, takes life one day at a time etc. But if you are the type of person with lots of ideas and interests that you pursue, the chances are that you are less likely to be unapologetically late to a meeting. Why? Because you realize the opportunity costs of wasted time and wouldn't do that to someone else.Oh that was something I hugely picked up on over there. The fact is that the world doesn't end if you are two hours late for a meeting.
-yeah, your world doesn't end but that "sweaty business man," meanwhile has to pick up his kids from Childcare by 6pm, and unlike you (presumably) has people and responsibilities that rely on him and therefore, time is in shorter supply.