"Mahatma Gandhi is not flawless" has nothing to do with his understanding of the Gita. Mahatma Gandhi's understanding of the Gita is infinitely greater than Amartya Sen's; I'm sure Amartya Sen's understanding of economics is much greater than Gandhi's was. In any case, any character argument about Gandhi and Sen would be decided in favor of Gandhi. Gandhi did not make Rama of the Valmiki Ramayana into a God, Rama was already a avataar back in the 16th century when Tulasidas wrote his Ramayana, and Tulasidas was drawing on an already ancient tradition. So now I can say with confidence that not only Amartya Sen but also his camp-followers are utterly ignorant of Indian traditions.