Motivators

When we are struggling to avoid loss or to repel trespass, sadness and anger are our motivators and our guides. When we feel a negative emotion, it is a signal that we're in a win-loss game Such emotions set up an action repertoire that fights, flees, or gives up. These emotions also activate a mindset that is analytical and narrows our focus so nothing but the problem at hand is present.
Could it be that positive emotions, then, has evolved to motivate and guide us through win-win games? When we are in a situation in which everyone might benefit...contentment, and happiness motivate us and guide our actions.