The world already makes those judgments. Society does it automatically. It reduces people to second class citizens, just based on how they act, look, talk, etc.
But, if you want to represent people, it is important to not make that distinction. Certainly not in the group of people you claim to represent, or who you want the vote from.
A politician would try to act like such classes do not exist when trying to get elected to represent. They would know deep down that such things will always exist, just never admit it to the public.
A politician should, ideally, be able to name the differences and address them (wealth, education, health, violence etc) without making it about a better type of people and lesser sorts of people. Not only in the words the politician uses, also in the thoughts the politician has.
That's ideally, I know. In practice, politicians back away from naming the differences, or do give a (hidden) judgement on the quality of the people.