I basically agree with you, but I think situation B to quite that extent is rare. And of course identifying similarity to that is pretty open to bias if you just don't like that movement.

Concrete example - I used to use the Hebrew name of God in theological conversations, as this was normal at my college. I noticed a Jewish classmate of mine was wincing. I discussed it with him, he found it uncomfortable, I stopped doing it. Didn't cost me anything, happy to do it.

Also, I think some of this is bleeding over from 'I am not willing to inconvenience myself' to actively enjoying making a point (possibly in some vague sense that it will help them reform, though not sure if that's evidenced). I can get that instinct, and the habit of "punishing" people who push things can make sense in game theory terms. But I think the idea of not feeling duty-bound is different to getting to the position where some commenters might turn UP the music.