Arrowsmith by Sinclair Lewis

Director Rippleton Holabird had also married money, and whenever his colleagues hinted that since his first ardent work in physiology he had done nothing but arrange a few nicely selected flowers on the tables hewn out by other men, it was a satisfaction to him to observe that these rotters came down to the Institute by subway, while he drove elegantly in his coupe. But now Arrowsmith, once the poorest of them all, came by limousine with a chauffeur who touched his hat, and Holabird's coffee was salted.

There was a simplicity in Martin, but it cannot be said that he did not lick his lips when Holabird mooned at the chauffeur.