This demonstrates (to me) that the perceived "ideal" beauty is outside the available genotypes, and this demonstrates (to me) that we are seeing Fisherian Runaway Sexual Selection. Note that both sexes are involved with pursuing this perceived "ideal" -- men, by finding the women attractive, and women, by altering their appearance to be closer to this "ideal" ...
Perhaps beauty isn't defined in terms of some 'ideal', but rather in terms of the relation of various characteristics.
Love your enemies!