>>ghee hotter and cheaper easy to buy easy to make
Nutritionists used to have a lot of bad stuff to say about ghee's saturated fat and palmitic acid though there has been some evidence that it can lower LDL (bad cholesterol). If the link between aldehydes and cancer is firming up then I agree we may well be hearing that ghee is a better choice than some of the vegetable oils that had been promoted as healthier.
My "take" is that these things flip-flop back and forward so often that it's best to look at outcomes and work from there. If cardiac disease and obesity is lower in the Mediterranean populations with their olive oil, whole foods and lower meat consumption (and red wine!) then that's probably a smart lifestyle to emulate while the scientists go back and forward making people miserable. ;-)
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1