Oh while we are on this topic there are branches within Brahmins and each group gets to feel superior to other Brahmins because reasons.
In some regions, there were also some devout worshippers of one God that take adverserial position about worshippers of another God (Shiva versus Vishnu)
Luckily most of these (I think) are on their way out and don't manifest in professional workplaces of today.
These tendencies must have definitely shaped careers and unfairly disadvantaged people as recently as a couple of decades ago.