Fire is very much like music. It occurs naturaly but it takes a man to make it useful. It took a series of decisions by a man to recognize fire and then to put it to many digfferant uses which we still continue to do today. What I mean to say is that so many advances are made in technology that don't have the same protection as a music copywrite.
Ben Franklin and Thomas Edison's heirs probably should be getting royalties because of the magnitude of the effect of their ancestors inventions. Can you say the same for the writer/performer of "Itsy bitsy teeny weenie yellow polka dot bikini" who may still be getting royalties whenever it is sold?