@Blamemeta
As someone who uses the bus, I have to say I have never stabbed anyone or pissed on anyone on a bus (or off a bus for that matter) and I've never seen it occur. I have had friends and acquaintances killed and maimed in car accidents though.
If you do it right, you share the bus with the sort that takes the bus because it's more convenient than getting stuck in traffic and having to look for a parking spot
I'm a doctor and I bike and take the bus. But neither of us really count as "the rich", we're still working class. Personally I see nothing about the rich to emulate, so I don't really see the point.