He saw something more in those eyes. The emotion wasn't nakedly apparent, but Mr. Cawley was a professional at reading the subtleties of people. The elderly and wildly successful credit card magnate believed that certain human frailties could actually help fuel success. Insecurity drove billionaire entrepreneurs. Emotional instability made for superb art. The need for attention built great political leaders. But anger, in his experience, led only to inertia.