The Steinbeck that your are (mis)quoting is from the 30's. Misquote because Steinbeck was talking about how the majority of the ""socialists"" at the time were "most of the so-called Communists I met were middle-class, middle-aged people playing a game of dreams. I remember a woman in easy circumstances saying to another even more affluent: 'After the revolution even we will have more, won't we, dear?'"

So the feeling of entitlement is much older and across political lines.