Do you think it could be a cultural artifact beaten into the Indian subcontinent by the British? Sort of a collective, areawide PTSD?

Tangentially, I personally wish people would stop using the "culture" excuse for a group's bad behavior. Culture doesn't develop in a vacuum. Certain cultural practices could potentially come from really problematic sources. Changing one's culture isn't an insult to anyone if you're changing it for the better. And in this case, even if Indian culture is to prostrate before those you see as your superior, I don't think that's an element of the culture that needs preserving.