How many of the 93% who have liked the movie have actually accepted the lower castes? There's no doubt the film is intense and tries to focus on the backward mentality of people in today's centuries.
But alas, I doubt whether this will affect and change the world. On a brighter side, may be the change will be seen when the world is on brink of destruction. I am hopeful that people will forget their caste, creed, religion and every possible gap to save a species of their kind.
Till then enjoy your movies and pass the time writing reviews on related movies!!!