You have some urge to answer, so you're satisfying some personal motivation. That might be to advance a political agenda or a desire to shape the world in the way that you want it to be.
Those with a socialist inclination usually have it because alone they have nothing but with the group they get something. That's the root of why socialism doesn't work. No matter how much you think it makes sense, human nature involves self-interest, even if you deny that you have it.