I guess this is true only to a point; perhaps there was an implicit "we should not judge people by the appearance they were born with"? E.g. if someone shows u

I guess this is true only to a point; perhaps there was an implicit "we should not judge people by the appearance they were born with"? E.g. if someone shows up to work in dirty clothes and unkempt hair, everyone judges them by that, and their boss might even say explicitly "this is not acceptable". I think we mostly agree that this is OK? Another confounder is that we all have subconscious drivers. E.g. I really enjoy Jason Statham in bad action movies, and I cut him more slack simply because of his visual appearance (his style). We all do exactly the same with a leader which our subconscious approves of, and we are more inclined to do a good job under such a leader. If a certain trait of a certain subgroup is something that's frequently featured in people's subconscious idea of a good leader, those traits will neccessarily correlate with better leaders.