By Daniel Kline The fast-food giant battles with McDonald’s in the U.S. and around the world. Fast-food marketing often struggles against fast-food reality. Big chains like Restaurant Brands International’s (QSR) – Get Restaurant Brands International Inc Report Burger King and McDonald’s (MCD) – Get McDonald’s Corporation Report generally have to pretend as if they care about their customer’s well being and those same customers do as well. The reality is that people visit a McDonald’s or a Burger King looking for indulgence. If we wanted a salad or a nice piece of fresh fish, we probably would…