I have plenty of retrievers before, but they were all Labs, and they LOVED to retrieve, and would for hours, literally. Now I have this sweet, not so smart in many ways, Golden Retriever that wants no parts of any kind if retrieving.... It's kind of a bummer, since I like to play fetch with my dogs.....
A pure bred dog does not equal a well bred dog. And by well bred in this example, I meant bred with a specific purpose and goal to maintain certain traits within the breed.
The problem with retrievers is that they are so popular, they dominate the top spots in the most popular family dogs, is that to keep up with demand, there has been some loose and indiscriminate breeding. Puppy mill and and back yard breeders pump out these dogs like carters does pills.
Since the market has been flooded with dogs that were bred with no thought to maintaining the character of the breed, these popular breeds are seeing dogs that are "pure bred" but are not "well bred" Temperaments (seeing more and more bad tempered goldens and labs) and instincts (loss of the field instincts) have been impacted greatly.
Breeding a dog to keep the best of what the breed is all about takes lots and lots of work. You have to research lineage and make sure you breed dogs that will continue the breed traits you want to perpetuate.
It took a hundred+ years of selective breeding to create the Golden or lab and it can easily be undone in half that time.
That doesn't mean that they aren't good family dogs, most of them are still excellent family pets. But the true breed qualities of the retrievers are being lost to the massive amount of backyard breeding to keep up with demand.
Now, in all honesty, this argument is also within the responsible breeder circles. The working dog breeders accuse the show dog breeders of breeding only for coat and looks and ignoring the field instincts. The show breeders accuse the working dog breeders of only breeding for retrieving instinct and ignoring what the dog is supposed to look like.
The most fanatical on either side say that the show dog couldn't find its way out of an open field and that you can't even tell what breed the working dog is supposed to be.
It is actually quite an honor to have a dog with both field titles and conformation titles.
So, back to the original. Just because your dog is a retriever, with the mass breedings of these breeds over the past 20 years, many of those field retriever instincts have been lost in the process.