Yes, you would think they are beyond any sense of respect when they want your ass dead and you're killing every single hit man he/they send after you. But Hollywood has its own rules.
Woooshhhhh
yeah, I know. It made no sense.
But, I believe John Wick was directed by former stunt men. So, it was about the Gun-Fu and how this guy, John Wick is "someone you get to kill the bogeyman".