The music industry basically has a monopoly on music. It's a government licensed monopoly. Anyone who wants to use popular music has to pay for it. If they don't, it's a federal crime. So they've got the media by the short hairs. If anyone on the internet uses their music, they must follow the digital copyright act. It's all very clearly spelled out. Maybe you should read it.
I understand that. But the people in the music industry are the ones who can influence Congress to set the rates. From what I understand, Congress didn't set the streaming royalty rates in a vacuum.