I had another interesting ethics question last night. A serious road traffic accident caused the closure of a major road. Sadly, it turned out this morning that a pedestrian was killed and a driver has been arrested for causing death by dangerous driving. In the end I decided not to send the photos to Live News - but not on an ethics ground but simply because they are unlikely to sell.
But, should I have taken the photos in the first place? I was given a hard time by a police officer who clearly disproved of me being there. He even told me I should not publish the photos until a statement had been issued by the police. - Which is of course not true. I take the view that if the photographs are in the public interest they should be taken, with appropriate restraint. The same issues arose over pictures of the Grenfell Tower.
i guess it is really up to each photographer and the particular situation.