We have enjoyed attending the Eukanuba Nationals in Long Beach, California for the past three years. (In fact, it's where we met Dottie's breeder.) I will attest that of the 150 or more breeds there, from chihuahuas to Mastiffs, all seemed to be happy, well adjusted, very socialized and very loved by their breeders/handlers.
Most show breeders will tell you that the physical attributes are only part of the package. In order to place well, the dog must also have the high spirited, happy attitude in the ring, be well socialized with other dogs and exposed to many different types of people, lights and noises. In fact, many of these dogs will go on to work in animal assisted therapy because of their well rounded demeanors.
Ah, the life of a show dog......