All cat breeds were . . . .um . . . bred. They didn't evolve naturally. They're like breeds of dogs or breeds of cattle. All cats are descended from the Middle-Eastern forest cat.
Such artificial selection is characteristic of every organism bred by humans - they are artificial species and will not survive in the wild without reverting such characteristics via recombination.
The "points" on a Siamese are related to body temperature. You will note that the darker spots are on the extremities, where body temperature is cooler. They may have originated as a way to absorb more heat from the sun.
So I have a Chocolate point saimese and evolutionary speaking most animals are camouflaged, Then u get breeds of dog and cat that are huge standouts
Or don't predators or animals see colors, do they see in shades unlike us? so doesn't make a difference?