I can give an anecdotal answer to this. One thing I despise is pushing people into "boxes" but for this answer I will have to do that. My older brother and I throughout our lives have always gotten into many fights (as children do) and one thing that I noticed as that he never apologizes, and never feels bad for me after our fight is over. I on the other hand immediately feel horrible, and apologize immediately. Similarly this has translated throughout much of my life. Whenever it comes to having tough conversations, by brother would always be able to and not feel sympathy and in the end get what he wants. Me on the other hand, always ends up compromising for the goal of the other person being happy.
Throughout my life the thing that I have learned, is that you have to be able to either feel that the thing you are saying will help the other person hence the need for no sympathy, or embrace the fact that you are difficult at being unsympathetic and cultivate an environment around you that appreciates sympathy, but also understands the requirement for understanding.