Not always true. I recently heard a famous band's song playing in the lobby of a hospital.

I can listen to this music freely on Youtube (or torrenting) from the same band. But I think that in the hospital application of this music, it is probably written somewhere that the hospital needs to pay the band a licensing fee for "commercial use".

They put it out for free because they make money on ads. Publishers don't mind Google reading the the content on their page, but don't like Google republishing their content on search results page and keeping the ad revenue. This has nothing to do with net neutrality.