The simple answer to this is "how much is it worth it to you?" The analogy to murder was simply - the law is the law, regardless of where it is broken. Technically, if someone hires you and you film the front of his store, even if you do it for free, and he uses that footage to promote his store it's a violation of the law. Technically. Profile is everything. The Dallas Cowboys got busted at training camp for using theirs to shoot practice. If you can live with it - who are any of us to stop you? As a fellow drone pilot, I would hope you consider what the potential is to everyone, but we don't live in a world like that any more.