It was a big deal on AMC’s “Mad Men” when Sterling Cooper Draper Pryce hired Michael Ginsberg in season five. Hiring “the Jew,” as Roger Sterling referred to him, was an attempt to update the agency’s image in an era (1966) when those who clung to the notion that business was a WASPy boys’ club were on the wrong side of the generation gap – a potential problem for an ad firm looking to reach young consumers.