Sometimes they think that showing their breasts is an act of courage (under the protection of male policemen).
Sometimes they claim to favor "equality" and "social justice", thinking that they are the good guys of the movie... but never mingle with lower class people, whom they despise.
Sometimes they wear Che Guevara's face printed on fancy and expensive T-shirts, like some magical item that provides "rebelness".
Sometimes they even lecture and shame those who do not share their mainstream rebellion...
Click on the pictures to enlarge them.