I think what you’re calling Desirability conflates two categories: average Appeal and conventional attractiveness? Imagine a small majority of insects personally prefer longer antennae, but also that this preference is somewhat embarrassing and short antennae are widely recognized as the more attractive shape. While you’d classify all of these under Desirability, movies would cast short antennae leads to maximize ticket sales, non-hookup-focused dating app pictures would go for poses that shorten the antennae, and tycoons seeking trophy-spouses would go for the fashionably short.
I think what you’re calling Desirability conflates two categories: average Appeal and conventional attractiveness? Imagine a small majority of insects personally prefer longer antennae, but also that this preference is somewhat embarrassing and short antennae are widely recognized as the more attractive shape. While you’d classify all of these under Desirability, movies would cast short antennae leads to maximize ticket sales, non-hookup-focused dating app pictures would go for poses that shorten the antennae, and tycoons seeking trophy-spouses would go for the fashionably short.