"English gentleman" is, within the last 400 years, the most world-shaking in-group. And it preferentially hired and promoted within the in-group into the present era.

Dalits and scheduled castes and tribes (forgive me if I'm getting this wrong) make up about 40% of Indians, but are historically about as marginalized as Native Americans and Blacks are in the US. And this marginalization continues with hiring practices in the US.