If Satoshi becomes know then bitcoin is dead. It defeats the entire purpose and reason for bitcoin. If the creator cannot stay annonomous the currency has failed.
i think you are very confused about the "purpose" of bitcoin!
it has never been anonymity and nobody has ever made such claims specially the creator (Satoshi Nakamoto). in fact bitcoin is the most transparent currency in existence. all it provides is privacy.
and the "reason" for creation of bitcoin was to cut the middle man aka the centralization.