A person with no ego sees no value in themselves.

A person with no ego sees no value in themselves. Well, a person with no ego sees no value in anything. A person with no ego makes no judgments at all, because that person has no criteria for judgment.

Ego is just the sense of oneself as a thing separated from the rest of the world, with a point of view, an agenda, a will. Of course it's an important part of our mental makeup.