It's been true for a song as humans have been on this earth.
True enough. But most people have always been peasants working a farm. Pretty girls could still catch the eye, but you don't get too many real stunners down on the farm among the peasants (hair, makeup, exercise machines, special diets, and fashion consultants being in short supply down on the farm).
Most of the time, the key factors were "Can she butcher a hog? And how is her apple pie?"
The looks were mostly a nice bonus, if they were there.