She's just so nice, which makes her seem even more capable - like Frances McDormand as Detective Margie in Fargo. Her origin story also resembles the legend of how the wife of the Hindu God of Love, Kama, was going to kill herself when her husband was himself killed while attempting to give Shiva God of Destruction the ol' Arrow-Thru-The-Heart treatment, when a mysterious voice told her that Shiva, also the God of rebirth, would bring back Kama when he had learned to accept love.
And yet they'll probably bestow the Predator creature-power on Carol Ferris, based on her qualifications of "Dated Hal Jordan" and "Is Human".
For all their good, I've yet to see the SS Corps recruit any non-feminine members - or even any non-anthropomorphics! Even the Red Lanterns got RagePuss and the Blue Lanterns' Ganesh On The Moon - sury there has to be some sort of adorable Tortoise-creature in the Sapphires?
(Don't make that face. You never appreciate how awesomely adorable a Tortoise is until you've owned one. And this comes from a guy who doesn't cry at Bambi. Tortoises are Love.)