This is a tool to satisfy the use case of sharing music with others. Sometimes such sharing will be illegal, but at other times it won't.
Should you be considered a child-molester just because I accuse you to be one?
In that case, it is in RIAA's best interest that everything is locked down and they maintain exclusive control over as many things as possible. It is also in their favour to make the public view anything related to sharing of media files as suspect. That doesn't mean this position is reasonable and valid.
Take a look at:
https://creativecommons.org/about/cclicenses/ https://www.jamendo.com/start http://ccmixter.org/
Nine Inch Nails have CC licensed albums. So "being famous" and "music that is under a CC license" is not mutually exclusive...