A wise unselfishness is not a surrender of yourself to the wishes of anyone, but only to the best discoverable course of action. David Seabury
You normally look beyond simple self-interest. This does not mean that you never proceed purely based on self-interest because you occasionally do. Rather, it means that you scan the interest field before proceeding. This is usually fairly instantaneous and automatic but most always precedes action. You normally know whose interests are affected by your action and the nature of the effect. That insight then becomes an important element in your action equation, giving you a concurrent short and long-term perspective, thus reducing the likelihood of negative eventualities following your action. Your actions seldom come back to bite you.