Somehow, when I say Pow-el street instead of Pow-ul street, everyone feigns ignorance, even though they completely know what I’m talking about. Doesn’t seem like language as a communication tool works well, when it is I used as a way to establish superiority.
I agree, especially regarding accents. Something becomes really clear if you move to different areas with even a slight accent change: the dynamics shift to "your accent is bad and ours is better."