The integrity of the system relies on dogs being judged to a standard as prescribed by their breed standard, judges worth their salt will not award dogs that don't meet the standard - whether in all breeds or specialty. It's unrealistic to imagine the conditions that you are suggesting and it has been pointed-out by many others in this thread that such a system would be prejudicial and would penalise breeds that have a small population as well as those that are disadvantaged by geography. If that's what you really think then put your money where your mouth is and come and do some shows in your own regional area and support your local breed clubs. Without the local clubs there are no dog shows. For that matter, have you been to a specialty recently?
I show a rarer breed and was part of the formation of our first breed club in NSW. We have held a specialty show for three years that attracts around 25 entries from a small group of breeders, many dogs exhibited are from the same lines. Our population of owners/breeders is small and dispersed across the state and the country - it is unreasonable to expect people to travel vast distances - but under your conditions watch these smaller breeds die a sudden death. In the case of my breed they are part of our national heritage and history and I would hate to see that happen. I hope the strong response to your post has received will help you to see the bigger picture.
