Wells Fargo has launched its first national ad campaign including a same-sex couple. It's also a first for the U.S. banking industry, notes CNN Money. The San Francisco-based bank and its rivals have featured same-sex couples in advertising targeted to the LGBT community in recent years. But members of the LGBT community have been eager to see more companies feature them and their families in broader advertising efforts, portraying LGBT people as simply another dimension of the modern-day family. Wells…