Even stars are victims of rudeness. Witness this video of Hugh Jackman and Daniel Craig being interrupted in the middle of their play A Steady Rain by some jag-off's cell phone.
Hugh and Daniel behave in civilized fashion, but are clearly annoyed. The crowd sits there snickering because...that's what you do now when faced with what normal people would consider socially unacceptable behavior.
In the past people might've shouted the asshole down, and someone might even have taken a swipe at them. But we've become such timid creatures. We just sit there and wait for someone in authority to come deal with the asshole. That's how fascism takes hold.