Never is a person so telling of himself as in his judgment of another.
Some might argue that the ego self, though a simulation/delusion, has evolved to give human organisms a necessary motivation for self-preservation. So why try to get rid of it? The biggest problem with the ego illusion is that it destorts the way we see the world, blinding us to our faults and projecting them onto 'others'. It is like a vestigial mental appendix that could go septic at any time and kill the real Self in us.