We have a really good example of this from Brunswick News, one of our members in Moncton. During the case of the Moncton shooting, there was that somewhat iconic photograph of the shooter walking down the street. Brunswick News had that behind a paywall, and it was for subscribers only.
The public broadcaster went behind the paywall, took the photo, and put it on their site—attributed, but put on their site—and made it free for use. Again, Brunswick News has a business to run, and their copyright was taken and put in the public domain.