 Altruistic acts include not only those undertaken in order to do good to others, but also those undertaken in order to avoid or prevent harm to them. Suppose, for example, someone drives her car extra cautiously because she sees that she is in an area where children are playing, and she wants to insure that she injures no one. It would be appropriate to say that her caution is altruistically motivated. She is not trying to make those children better off, but she is being careful not to make them worse off. She does this because she genuinely cares about them for their sake.