Is a breed standard truly beneficial to all breeds?

Even tho a Border Collie was bred for work, rather than looks, they still have a particular structure that is part of the breed standard as it gives the BC the best ability to do the job they were bred for originally. To me, it's not the breed standard that has the potential to be detrimental to the breed, but rather those that are breeding them. I know of MANY conformation BC breeders who do that and maybe obedience with their prized winners, and that's it. This, to me, is what is detrimental to the breed. They are doing this breed a great injustice by not proving their breeding lines can actually DO what they were originally bred to do.