Folk or not, beast is wrong.

I'm just pointing out that many people know it as Savage Beast (do a Google search). That's just describing a reality in which there is no wrong simply because things exist in mutable feral-space and take on a life of their own. Folkies call it the Folk Process (or a Mondegreen), but it's really the way culture moves, forever flying in the face of pedantry. Apart from anything else no one these days says Savage Breast or even knows who William Congreve was, much less what he was getting at in the text you quote, or could even care. I only know myself because The Way of the World was a set text in an English A-level I did a few decades back as a mature student. I wish I could say I was richer for the experience...