Louis Menand summarized the mid-centurysituation and Macdonald’s thinking as follows: “There was a majormiddle-class culture of earnest aspiration in the 1950s, the productof a strange alliance of the democratic (culture for everyone) and theelitist (culture can make you better than other people).
note here, again, the idea of culture as "capital":
culture can make you better than other people