World Mastercard cards for affluent consumers entered the U.S. market in 1997. World Elite, created as a superaffluent product, launched in 2006. Since then, both cards have been introduced around the world. This month Mastercard announced additions to the benefits package tied to World and World Elite cards. Most importantly, those additions mark a change in the delivery of benefits by providing them without the cardholder needing to take any action. Beginning this summer, World Mastercard and World Elite Mastercard cardholders in the U.S. will gain a $10 credit for every five Lyft rides t...