You are severely overestimating Einstein and Gandhi. If you look at the history of general relativity* you notice that while Einstein was at the center he developed his theory with much help from others such as Hilbert and Levi-Civita. As for Gandhi, he himself was inspired by others such as the March 1st Movement in Korea; his greater fame could be perhaps linked more to the fact that India is huge. Not to take anything away from those two, except perhaps the world's almost deific portrayal of them.