To me, a certain fluency in areas of pop culture is necessary in order to comfortably navigate the world, I like knowing that Kelis is a singer and Bob Clearmountain is an engineer specializing in mixes, and Elvis died in 1977, and that Fergie is in The Blackeyed Peas with Will.I.Am.
These things make the world a little bit more sensible to me. When I hear a reference I am able to relate it to a my internal database.
As to privacy, they don't want it. They make a lot of money because people like us know their names. If they wanted to, they could go live under a rock somewhere and sing and play to their heart's content, utterly anonymous. They choose fame. They are in the business of being famous.
Why would you want to interfere with their business plan?
