I think for working dogs its great. Along with anything else that is helpful to them.
Otherwise I don't think its needed nor do I see a reason to do it. Especially with many of the breeders doing it for show, to keep the breeds look yet they crop the ears quite a bit longer then the working ancestors were cropped.
I think the opposite. My dog is my decision, besides what they are allowed to do under free will I make the decisions. They are my responsibility. I chose if they will or won't have a surgery (whether that would be something elective like spay or crop), what collar they will wear, when/what they will eat, that they will be leashed on walks. Certainly not my body but my decisions to make none the less. I don't agree with letting a dog live their life without my decisions no more then any other animal or a child.