plastic surgery- fashion or fashion disaster

i have come across many programmes on the t.v about cosmetic plastic surgry goin wrong and read many stories in newspapers and magazines about the risks and disasters associated with plastic surgery, not to mention the money it involves. so why is it that so many people find this to be a good option even though they are risks such as numbness, seroma and necrosis. why not just be happy with the body your born with and leave it the way nature does