I take a lot of pictures. I've got more than a few cameras with 100K+ clicks on them. And as I look through the pictures that I take, I find that often the background is rather "none of my business". That's a terrible thing to say. Maybe if I thought more and planned more and clicked less, I wouldn't make that observation.
But yesterday, I was concentrating on taking pics of our pup. And he was doing what he does in the water. And the background was just that. Not even really an afterthought. But an artifact of his dog-ness:
I think it worked out well for the purpose of the picture. But it's a byproduct of the subject doing what the subject does.