1. Led Mexican people toward independence from oppressive Spanish government.
2. Sought to improve society through avenues beyond his profession (as a Catholic priest).
3. Sacrificed his life in order to preserve equality in society.
During the 201st birthday of Mexico, President Felipe Calderon waved the Mexican flag and gave the traditional "grito." During his shout, Calderon reminded citizens of several of the leaders from the revolution.
Even though the event itself does not directly influence society, the celebration reminded several individuals of the original date. On September 16, 1810, Miguel Hidalgo led mestizos and indigenous people to declare independence from the oppressive Spanish government. You may ask, how is this anything special? How does this contribute to society?