Do you think a normal feeling of inferiority is necessary?

No - although very different, we are all equal in this world. You are just as worthy to be here as anyone else. Some go around acting in an arrogant manner, as if they are above all else, when in reality they're not. Never let anyone dictate your emotions or make you feel like less of an individual. Be who you are and do not depend upon other people to approve that by any means. As long as you accept yourself, that's really all that matters.