By Alex Prewitt The two U.S. stars own many medals between them, but they’ll be remembered most for their fight for equality and representation in their sport, including the addition of the women-only monobob event to the Games in Beijing. BEIJING — In early 1940, a 24-year-old bobsled driver named Katharin Dewey piloted three men to unprecedented victory at the AAU national championships in Lake Placid, N.Y., shattering a once-impenetrable icy ceiling. “Bobsledding, since its inception a stronghold of male sport, bowed … to femininity,” the Associated Press wrote at the time. But the thrill p…