As hunters we should all try to be good sportsmen and do our very best to be as humane as possible. But we must recognise it is not a perfect science. Respect your quarry.
Let us also remember that the Natural World is by far the cruelest of them all. Even human industrialisation can't match it. Most humans haven't any clue what is done on their behalf to provide for their needs and wants. At least a good sportsman recognises the magnitude and responsibility of what they are doing, and what they are doing is quite natural and normal and nothing we haven't been doing from the very beginning.