How do you plan to stop the social contract being changed by some successor or if you get bought out? Google was all "don't be evil" until they became evil. Not

How do you plan to stop the social contract being changed by some successor or if you get bought out? Google was all "don't be evil" until they became evil. Not really sure of a good answer to that, other than perhaps having each user buy-in to become a shareholder, and even then, don't know if that would prevent this situation.