Sometimes I meet "foodies" for whom the experience of eating good food is really narcissism. They talk, endlessly, about themselves and their experiences. The point is not the food but to demonstrate how devoted they are to this pursuit and how good they are at discerning minor differences in taste between, for example, one wine and another.
Supertasters are real. I have no doubt that, for example, James Hoffman really can taste the difference between coffee made in the sometimes incredibly labour-intensive ways he advocates and less serious cups. I have even learned some lessons from him that have enabled me to make the coffee I make at home better. But here is what I really like about Hoffman: he readily acknowledges that not everyone is going to want to go all the way with him. I'm not a supertaster like Hoffman so there is a point where I get off the trolley and say, "This good enough for me," and that is just fine with him. And he doesn't act like he is a morally superior being because he's a supertaster.
Shifting metaphors a bit, I did once have to sit through a public discussion that was dominated by a woman who is a mediocre musician who insisted on telling a famous conductor that she could hear tuning inaccuracies in the chamber orchestra he had just conducted. She didn't think this was a problem for others and said she was glad others were able to enjoy but she wanted everyone to know that she had philosophically endured the concert that her superior sensibility had made it impossible for her to enjoy. The famous conductor smiled and nodded along and then said sympathetic things because the woman was the head of a foundation, endowed with money her father had made, that funded the music festival where all this took place. She was being abusive.
I think a lot of "empathy" talk works like that. I think some people who are just emotionally unstable and some others who just seek power abuse the notion to make themselves the centre of attention. People are allowed to obsess over bullshit. Fantasy fiction is just fine. But if someone comes into the room and insists that the rest of us have to fund fantasy fiction or that her deep love and knowledge of fantasy fiction entitles her to lecture the rest of us on politics and morality there is a point where the appropriate response is to say STFU. A lot of "empathy", frankly, deserves the same response. They're just being abusive.