Here's a reality check- people live aboard for ONLY one of two reasons:
1. they can afford to, or
2. they can't afford to live anywhere else.
What difference does it make? It's no different than a neighborhood.
A liveaboard who throws his/her wealth around is no different than living next to the Jones' trying to keep up with the next gizmo/gadget, car, etc., some hide (live) behind gates and walls.
A liveaboard who is frugal usually does keep watch on all boats in the area, recycles (hey I found a sail in a dumpster in San Francisco that I gave to a fellow sailor in Providencia), we are generally educated, do tip the 20%, have little debt because we continually save for boat maintenance and the occasional cruise.
I know a lot of sailors who leave their "titles" at the dock while out on the water - there's no Dr., Your Honor, etc., we are all equals out there!