How does Roland Barthes use imagery in Mythologies?

In the section titled, The Poor and the Proletariat, the author focuses on the screen persona of actor Charlie Chaplin, a persona he defines as consistently both proletarian (working class) and poor - for Chaplin, the author suggests, being proletarian equals being poor and vice versa. The Chaplin-Man persona, he writes, is unaware that the possibility exists for change, feeling a vague desire to rebel but ultimately being more concerned with feeding himself. He cites the extensive food imagery in Chaplin's films as a manifestation of this circumstance, but then suggests that no other film actor/persona has dramatized the need for revolution more effectively—"To see someone who does not see is the best way to be intensely aware of what he does not see."