The empathy-altruism hypothesis by Batson states that "feeling empathy for [a] person in need evokes motivation to help [that person] in which these benefits to self are not the ultimate goal of helping; they are unintended consequences"
According to this theory , Dan will help the woman gather her papers even though he is late for his important meeting. He will do so because he has been in her shoes, that is t say, he empathizes with her situation.