What factors lead people to criticize their society rather than simply accept it?

Repression experienced by a minority often leads to protest. Without sufficient resolution of the dispute, a social criticism can be formulated, often covered by political groups (political monopoly). For protesting people within a social movement, it is often frustrating to experience failure of the movement and its own agenda.

The positivism dispute between critical rationalism, e.g. between Karl Popper and the Frankfurt School, is the academic form of the same discrepancy. This dispute deals with the question of whether research in the social sciences should be "neutral" or consciously adopt a partisan view.

the guest is my guess

what is a theme?

ans: the implicit idea of a written work of literature is called a theme.

so, the only theme of "birdfoot's grampa" by joseph bruchuc is that as a human being one should always remember the value of every life on earth.

the grampa is stopping the car again and again to save those little toads from washing away in the heavy rain is an act of kindness and humanity.