While I disagree with your conclusions about Jesus, it seems that you have, perhaps inadventently, demonstrated a limitation of pyschoanalysis as being only applicable to issues involving the ego.
If you will refer to the portion below highlighted in red, it occurs to me that it makes no sense to require that which is unreal to be present as part of a determination of psychological health or balance, as it seems to be requiring some measure of disorder to exist in every person. I do recognize that ego is a recognized and noticeable occurrence. But, I do not see that it is necessary for a person to be who he is, as in required to for him exist and be healthy. Many teachers in spiritual matters have pointed to the illusionary (even if we call it ideal) nature of defining ourselves in terms of mental concepts, or false identities that do not exist in reality unless we make them up for ourselves.
If Jesus was actually the embodiment of Truth, he would have no ego -- because the ego is a false self (ideal self, at times perhaps -- but I would submit not always "ideal," as the ego often presents negative illusions of self, like unworthiness or inferiority.)
Splitting
Main article: Splitting (psychology)
People who are diagnosed with narcissistic personality disorder use splitting as a central defense mechanism. According to psychoanalyst Kernberg, the normal tension between actual self on the one hand, and ideal self and ideal object on the other, is eliminated by the building up of an inflated self concept within which the actual self and the ideal self and ideal object are confused. At the same time, the remnants of the unacceptable images are repressed and projected onto external objects, which are devalued.[14] The merging of the "inflated self concept" and the "actual self" is seen in the inherent grandiosity of narcissistic personality disorder. Also inherent in this process are the defense mechanisms of devaluation, idealization and denial.[15] Other people are either manipulated as an extension of one's own self, who serve the sole role of giving "admiration and approval"[16] or they are seen as worthless (because they are unable to collude with the narcissist's grandiosity).[17]
Perhaps many people need to strike a balance between what is real and what is an illusion created about the self by the mind. However, I do not see evidence that Jesus did that. Actually, I think that Jesus often presented his messages in the form of teaching what his followers could actually do (with the proper understanding) rather than, "Tah Dah, look what I can do."