this is great question. had to look it up to remember exactly what it meant.
for clarity, Empathy is the experience of understanding another person's condition from their perspective. You place yourself in their shoes and feel what they are feeling.
If the situation requires it I can empathize. Most if not all of the time I am very focused on what I am doing and am not aware or don't think about other peoples feelings.
For example, a group meeting with the boss where you watch the boss getting angry at what others are saying. I just want to say, keep your mouth shut you dummies, cant you see you are pissing the boss off. They go on and on and the boss's face gets red-er and red-er.. funny. I guess that is self serving empathy.
Empathizing is not really something that I do unless it benefits me somehow. poker games, business deals, buying or selling something,
If I concentrate I am pretty good at it, otherwise I have none.