The British don't deserve the sole or even major credit for the cultural changes you talk about. Reformers like Rajaram Mohan Roy, Vivekananda, Gandhi, Ambedkar deserve most of the credit. Cultural changes can not simply be forced by external forces. The British just wanted to organize the Indian society the way they idealized so that they could reap the surplus.

The India of today would be unrecognizable from British India. Many former British colonies in Africa continue to be only slightly better than Somalia. You are giving the Raj too much credit.