If you are truly asking an honest question, for me, it would really depend on the breeder. If you have a long time, experienced breeder breeding an untitled dog, with generations of dogs with titles behind them, yes, I trust them to understand the standard, know what they are looking at in their dogs, truly understand temperament, and make good breeding decisions. That was done more often in the past, and is still done, occasionally. You might have a bitch that didn't finish because she hated being shown, or had an injury. You might have a bitch with a spectacular sister who has similar traits and the breeder chooses to use her for a good reason. From someone who has a good track record? I have no issues with that.
If the "someone" doing the breeding bought a couple of dogs, has never bred, and is making those choices? Nope. Why? Because they don't know anything, and don't even know what they don't know. How can they assess their dog's structure? Temperament? How can they choose a good match for their bitch? Assess the pedigrees? They have zero knowledge base. Breeding is more than simply looking at the pedigree of a dog and saying "that looks good."
As to your comment about better handlers winning, well...of course a professional handler is going to be...better. It's their job. That doesn't mean that it's unfair. Owner handled dogs win, too, and the dog that is the best dog is supposed to win. I know plenty of non-professionals that win all the time, over a professional. Is it sometimes not that way? I'm sure people would say so. I don't compete in conformation. But I think overall my conformation friends would say the sport is generally about the dogs, and the judging is generally fair. If you have a good dog, that dog will do well. It's easy to look at it from the outside and judge it. If you aren't involved in the sport I don't think you have any say, frankly. If you have a good dog who meets the standard you'll do well. If you aren't willing to get out there and try it but simply badmouth it, well...you really have no business having an opinion about it.