Plastic surgeons fill lips with collagen, and people fill their pockets with money. It's an even situation: full lips and full pockets. Even the nice girl type actress Meg Ryan or the classical beauty model Nicole Kidman did it. Why on Earth would they do it? Or everyone wants to look like Angelina Jolie?
Looks like people don't have enough with fake food and fake smiles, they want fake themselves to top the cake.