I think we all underestimate the influence of genetics. Famous actresses are not just women with acting talent, they are genetically very rare and fortunate in almost all cases, and then have varying degrees of acting talent. Otherwise they would have been selected out of the race early on. They do not have short legs, narrow shoulders, thick ankles, etc. None of these things can be "fixed" with plastic surgery. The same, to a lesser degree, with body weight. The fat goes where genes tell it to go, and clings as much as genes tell it to cling. There are limits to what can be done with exercise and diet. We all are optimizing, but when Jennifer Aniston optimizes, she gets better results than I do, no matter how much money either one of us has.