If one brush stroke in a painting were made using the blood of a murdered child as paint, would you treat the entire painting and the artist with suspicion? I would. Maybe a masterpiece could be so good that it would overpower that one act in my subjective evaluation, but it would have to be the masterpiece of a true visionary. I would not be easily persuaded.

Oil is the blood of the very earth on which we depend to live, so to spill it in the name of art is perhaps a greater crime than to spill human blood. Again, I could be persuaded by a masterpiece to set aside the flaws in its creation, but it would require a certain bar of quality.