The document discusses the concept of enlightened self-interest and how contributors think with this mindset. A contributor finds ways to benefit themselves as well as others in every situation by creating good for their team, bosses, customers and organization. In contrast, a non-contributor is only concerned with their own self-interest and does not consider the positive or negative impacts on others, leading to relationship problems and lower trust. The document provides examples of qualities a contributor exhibits, such as having a positive attitude, using a success-winning strategy, motivating themselves and others daily, building self-esteem, setting and achieving goals, and doing the right thing for the right reasons.