I keep reading the phrase in this discussion "ethically or legally" and I think these should be more clearly distinguished. It's not necessarily unethical to break a law and it's not necessarily illegal to do something unethical.
A good clear illustration of this is driving on a freeway with a speed limit of 55 when everyone else is doing 60. The safe behavior is to drive 60 and I think that makes it the ethical behavior. In this case being legal might be thought to be unethical.
I sometimes lend a book to one of my neighbors on my spare Kindle and I suspect that's legal, although I'm not completely sure. I'm quite sure it's ethical. I refuse to admit in this public forum that I may also have made a copy of a book for a neighbor with her own Kindle, but of course that would be illegal if I've done it. However, refusing to do it would, in my opinion, be considered stingy by both my neighbor and myself and would probably, therefore, be unethical.
A good person shares with friends. That's ethical behavior. It isn't always legal behavior.
When the law says you can't do something that's ethical is the law unethical? What do you do then? Follow the law? Be a good person? Of course then it becomes a practical choice. Can we afford to be ethical? Are we likely to get caught?
It might be argued that law is an agreement we make with others and that breaking that agreement is unethical. I can't think of a good objection to that but I don't necessarily buy it, either. So I'm ignoring it for now.
Barry