I don't know many women who can relate to Sharon Stone and the kind of movies she does. I don't know a lot of guys who can relate to Tom Cruise's movies because they're on a kind of fantastic level.
Beauty is also submitted to the taste of time, so a beautiful woman from the Belle Epoch is not exactly the perfect beauty of today, so beauty is something that changes with time.
Good acting is all in the writing. If it isn't on the page, then it really won't make any difference. You cannot act on force of personality alone.