On another tack with India. Suppose that a noble, favored by both George IV and Victoria, were to marry into the family of a Maharaja? If intermarrige between the high nobility of India and Britain became first acceptable then (because of the vast wealth) fashionable. Picture an British Empire with a powerful resurgent nobility and a total rejection of 19th century racism, but otherwise rather right-wing. It could be a lively, if low probability, world.
Certainly the
Great Game would be wildly different.