A better analogy would use a non-rival good, since taking all the candy precludes anybody else from having it. Something like a work of art might be better. Le

A better analogy would use a non-rival good, since taking all the candy precludes anybody else from having it. Something like a work of art might be better. Let's say you sculpt a statue, and you allow anybody to view it for free, including the right to take pictures of it for free. You have an optional donation box next to the statue, but nothing mandatory. Now, someone takes a picture of it, retouches it photo-editing software, and then sells that photo to millions of people and makes billions of dollars off of it. Is it a 'cost of doing business'? No, because the cost had already been assumed by the time you'd decided to license the statue the way you did. Is it illegal? Of course not, because that's how you licensed it. Are you worse off for it? No, because you lost nothing - viewing the statue is not a rival good. When viewed in this light, it certainly seems like a rather rude thing to do, but the artist knew that this was a risk when licensing his/her statue in that way.