Excellent question, X! Our personalities are adaptable to different people and situations, e.g., we interact with our grandmothers differently than we do our friends. But, if allowed to develop organically, our self-identities reflect who we are and what we believe. We simply adjust to the identities of others and situations we find ourselves in.

In contract, an identity that is "manufactured" by popular culture wears a full-time persona that is not ours. And it likely accommodates others's needs, due its need for acceptance and approval, rather than express its own needs.