"Cosmetic" Surgery

Plastic surgery and all the procedures under the umbrella of this term, is without a doubt a spectacular feat in science and technology. However as with most spectacular feats, there lies an equally spectacular fall on the other side. (Newton's 3rd law of motion: Every action has an equal and opposite reaction).
The use of plastic reconstructive surgery is another wonderful string to the medical bow, but i can't help thinking that it's use for cosmetic purposes causes natural evolution to slow down...just a little bit.
The process of natural selection is inhibited by the fact that some people look like a more attractive mate and a suitable spouse to raise young with than what their genes will actually produce.
It basically means that genetically 'ugly'* people are reproducing because they look prettier. Their genes are obviously not affected by the surgery and are therefore producing children that are not as advanced (relatively speaking in evolution terms), had the non-surgically enhanced parent produced children with similarly non-surgically enhanced spouse.
Having said this, as our one underlying primeval instinct is to breed....then giving 'ugly' people the opportunity to breed is probably good in the long term for the human race, in terms of numbers at least. Bigger is not always better though; this being proved countless amounts of times in Africa and the resulting famine...but i digress, Africa is an entirely different can of worms.
This leads me to my underlying point; that "cosmetic" surgery is not merely cosmetic.


*I'm not referring to purely cosmetic looks, but i can also mean recessive diseases that could possibly be hidden in the genes or anything else hiding in the skeleton

I realise I have no evidence to back this up, but its just a blog, so make your own mind up, just thinking out loud really.