Yes, but you are talking about someone who bred for show, to breed a champion and make lots of money. And a Pom at that
When you are discussing a breed like the Cavalier we are talking about breeders that are breeding for health. It is expensive to fully health test with all the problems this breed has so money isnt a factor! They most probably won't make any!
All you need to know is that they have fully health tested their breeding dogs, and preferably a generation or two back.
Wtih out meaning to sound rude, it seems like you are trying to talk yourself in to beleiving this is a good idea, and when I have to talk myself in to beleiving im doing the right thing- its because it is 100% the wrong thing to do!