Ambedkar is remembered mainly as constitution-drafter, not as anti-caste radical

Evidence

Dr Ambedkar (who, incidentally, did not even have a walk-on part in Richard Attenborough’s Gandhi, though the film was co-funded by the Indian government) almost always makes it into the final heat. He is chosen more for the part he played in drafting the Indian Constitution than for the politics and the passion that were at the core of his life and thinking. You definitely get the sense that his presence on the lists is the result of positive discrimination, a desire to be politically correct. — Ambedkar, B R, Annihilation of Caste_ The Annotated…, 88