You speak in great measure to that of accountability and that understanding, and this is indeed an able and like understanding as did Jesus and many world saviors convey to others in their respective times, but whose points, alas, were very much corrupted. The concept of sin came later, a concept got up by those who would become the proponents of what became Christianity. We must bear here, Jesus was not Christian, for only following his time long after did Christianity manifest, and even the title Christ came 200 years after his passing.
Now, I share your views in great measure, only to qualify a trifle more to drive home a priggish point on semantics, because we don’t wish to chance the error to define your disbeliefs and differences by means of which one chances limiting oneself -- with which point of view, again, I do agree in great measure with you – that is, to define the differences by use of the holdings used by the very ones with whom we disagree except of course but to avail sheer communication; that said, I quote you here: “Jesus would only be a savior, if those who believe in Him and follow Him, could be as perfect as He was, and that's not what happens.”
It is this. Nor was Jesus’ example and words ado with perfection except in regard to the inner body and self -- the true vehicle -- not the outer self as many of his proponents at that time and now were and are led to understand and believe, for even the closest among him during his mission had not the light and merit to contain and carry and teach as he had intended.
Jesus was a contemporary of Zadok (Melchizedek) and a student of same as well as one of several other great teachers. He in the least knew the art of oratory, dialectic, and that of teaching among other skills, yet even of his learning did he not abide completely as taught.
Because of the nature of his work and words, he must constantly return to the court of Man, say, until there are no more misunderstandings involving his name or until all remnants of karmic debt incurred in his name are cleared up. To that end, he is as well the teacher of many – and that is a default, however. But he did among other things intend to bring of and teach great light but not as it would later pan out.
His mission, in the strictest definition of the title was that of a world savior, yes – and of this, he will be bound to the world, for his did take on the karma of making his work known through the power of personality. Thus the karmic debts are incurred in his name, that personality; and so it is in this form that he must answer for the debts.