In the middle, where most people spend their days, it is hard to distinguish morally between positions. It is easy to disparage people who think only of their family or neighborhood. But higher up the ladder is not necessarily better--think of the numberless instances where people, genuinely believing that they are acting for the benefit of larger entities, have ended up doing awful things. Would the world have been better off if the soldiers in the Crusades had not tried to spread the light of Christianity and instead had stayed home and improved their own villages?