I don't have a lot of patience for slow idiots so I usually try to get around them. Now I don't weave in and out of traffic the whole way, but sometimes I need to.
Usually it's only if I'll gain quite a bit, I won't pass just to get in front of one car if there are other cars right in front of that one anyway. If there is 20 car lengths between the person I'm behind and the next car, yes they get passed.
I have a lead foot, it's hard to drive slow anyway, but it makes it worse because my Mag feels like it's just crawling along unless I'm going at least 75 or more. Unfortunately I can't always do those speeds.