No, I didn't think it was snobby at all, in fact, I think it's correct. If you are a breeder by profession, and put more than a couple of foals on the ground per year, you better be trying to improve the breed. If you're not, you will surely end up bringing the breed standard down.
However, there are a lot of hobby breeders out there. Not backyard breeders, but someone with a nice performance mare that they want a foal out of and try to carefully select a stallion for her. Those folks frequently get lumped in with backyard breeders and bashed for contributing to the unwanted horse problem, which I think is unfair. A hobby breeder, the person with the nice performance mare, can't realistically hope to "improve the breed", but they can certainly plan carefully for a good quality foal.
Hope that helps clarify.