Were I to rule the world, I would implement laws for the betterment of humanity as a whole, for example:
Should you because famous for being famous, your family name becomes a brand, a scent, and your sole identity, and you use that fame to make an ass of yourself, your name shall promptly be taken away and replaced with first and last numbers.
Take note, Kardashians, or should I say Family Unit 112343.
(Intelligent family members would be able to keep their name, or change it freely, based on the assholes they were forced to live with, however appearing on Dancing With the Stars automatically revokes this right.)
... You're welcome, World.