If you capture something you are recording history. This is something you should probably do and keep doing. What you do with the capture is where your ethics kick in. Sell it abd cause humiliation and you can call yourself a Paparazzo. But you can also call yourself scum. Sell it to the media for millions and not cause anyone hurt and you can call yourself rich and guilt free. Capture an incident and provide the documentary evidence to a victim to allow them fair restitution and you've done someone a great service. My point, really, is that it's more what you do with it than whether you capture it.