Long before the rest of us were talking about blue and red America, Tom Wolfe not only recognized the cultural divide; he bridged it. When he began his career in the 1960s, the liberal establishment was more dominant and even smugger than it is today. There were no pesky voices on cable television or the web to challenge the Eastern elites’ hold on the national media. Then along came Wolfe, a lone voice celebrating the hinterland’s culture, mercilessly skewering the pretensions and dogmas of New York’s intelligentsia—and somehow triumphing. How did he get away with it? The most entertaining analysis...