It is up to good breeders to have standards and many breed clubs apply standards to their members. Just because the British Kennel club does not apply stringent standards across the board to all those using it's registration services, does not mean that god breeders do not apply them to themselves.
When I first came into pedigree dogs (1988) buying a Belgian Shepherd Groenendael, as you say there were no restrictions (other than a dog being endorsed progeny not eligible for registration) to prevent the registration of any litter where the parents were both registered, the bitch in the litter breeders name, and with confirmation of mating from the stud dog owner.
Yet even then most breed clubs demanded a lot more (on a voluntary basis) from their members.
My pups parents were both Hip scored, the only screening needed at the time (they now are eye tested for hereditary cataract).
When I changed breeds in 1992, my breed clubs code of ethics
http://www.necgb.co.uk/pge.php?page=11 was almost the same as now (other than the DNA test for prcd-PRA and the amalgamation of the KC general code of ethics).
Since the mid 90's some general rules have been brought in by the kennel club.
The first was a limit on the number of litters, initially to the statutory legal 6, but since to a limit of 4 litters.
Then the upper age limit (except for special pre-agreed cases) of 8 years.
Somewhat alter the minimum age at mating of over a year was brought in.
More recently no bitch that had two caesarean sections could have any further litter registered.
No litters from first degree relatives are allowed to be registered.
Good breeders do the RIGHT thing by choosing their breeding stock carefully for health temperament and breed type.
Poor breeders don't.
The only difference is that more poor breeders in other countries breed outside their kennel clubs. Unregistered stock is a waste of genetic diversity to a breed.
It has been much easier for relatively young and emerging kennel clubs to set strict breeding regulations right from the start, with much lower numbers, primarily the more educated and knowledgeable using their services, the vast majority (as more and more here) breeding outside it.
The UK kennel club does set stricter rules for members of it's Assured Breeders Scheme, of which I have been a member but will no longer be from the 1st of June.
I will of course continue to breed to the same standards, but don't see why I should be paying an extra (I already pay £20 for my Kennel name each year) £30 this year, rising to £45 next and then £60 the year after just to say that I do. When any person can register puppies for currently the same price, but shortly for just £2 per pup more.
I think those who buy my puppies can make up their own minds as to my standards, based on what they see when they visit (rather than what some UKAS tick box proforma says), and what I do, especially re health testing and the standard of my dogs.
So it is really up to buyers to educate themselves about a breed and find a breeder who breeds with high standards.