Re: The ultimate goal of Man Of Steel and what it means to be Superman.
Clark wasn't raised with any desire to "rise above humanity" or show off. He knows that he's blessed with incredible powers but since he's a genuinely good person (they do exist, believe it or not) with a decent upbringing, Clark creates the Superman persona so he can use his powers to help out his fellow man rather than keep them bottled up and benefit no one.
If you were to give 10 people Superman's powers, at least 9 of them would be content with flying around and bench pressing heavy objects with no desire to rule over humanity. It's just that one guy who wants to mess it up for everyone else. Just my opinion.