Ever read 'Why men marry bitches'?
Even men prefer women with more "confidence" which almost always comes from looks, and failing that, from talent.
Inborn traits are always more desirable than earnable traits because you can't earn them. Rarity creates value.
Earning is considered a way of "Cheating the system". Even though people espouse the value of hard work they know that results count and that saving energy and time is important: so somebody who has the goods without working is worth more than someone who has to work to get them, assuming you can get them at all.
What do you care about more in your Minecraft game, diamond or emeralds? Emeralds are way rarer, but you can renew them and farm them. Diamonds are once a world.