Remember, when Burns wrote the lyrics to the old scots tune, he was employed as a Government customs officer in Dumfries and was trying to gain some credence as a pro- Hanoverian supporter (he had a wife and kids by this time) to eke out his meagre income as a farmer of a pretty poor small farm. I'm pretty sure in his heart he yearned for the Jacobite cause, but 40 years after the failed '45 uprising and having seen at first hand on a tour through the Highlands the utter devastation wreaked by the English forces, Burns was astute enough to know the "way the wind blows" (to quote another great poet and songster). Definitely a song of the head if not the heart.