Marx believed that capitalist working classes would rise up and revolt against the upper classes. Rousseau believed humans join society upon agreement to a “socpopial contract”. Adam Smith advocated for laissez-faire economics, believing that an “invisible hand” could correct such an economy toward equilibrium.
The Qur’an states that the oppressed have rights to defend themselves from oppressors. Are socioeconomic upper classes rightly oppressing those beneath them? Is a Marxist-style revolt justified?
Rousseau’s theory of social contract is existential (e.g., Sartrean) to the extent that being thrown into the world usually lands humans into society.
Given the above state of affairs, can lower classes voluntarily exit their (unequal, and so undesirable) social contracts? If not, and if they are being oppressed–sweatshop labor is an noncontroversial example–then they have the religious right to revolt (per Islam).