inferiority complex and superiority complex both are the great complex, in case of teacher asks to his student one question: immdiately starting the routine period, the students just down their head and neck below, this is a sort of inferiority complex. In another case the student ask a question to teacher and teacher could not able to respond their question, though the teacher was having superiority complex, and for that question teacher was not able to give it correctly. I think both complex are horrible and directly drop a impact on the personality.
So, most of the people having this problem. The type of complex also badly affect the overall score of oneself.
In confidence building factors the complex may create some odd things.
I have yet not found answer that why the people are suffered with these complex !