"Folksongs belong in the home,in the pub,in the focsle,in the back of atruck or a friendly verandah;not in the list of set pieces at an Eisteffod, not in the schoolroom unless as a rare
treat, not between toothpaste advertisements on radio or television.
In the alien atmosphere of the concert hall it takes a great artist to preserve the life and spirit even of his own folksongs let alone those of other people."
J S.Manifold,Queensland 1962[compiler of Penguin Australian folk songs]

he raises some interesting points,that are worthy of discussion.
The appropriate point here relates to advertisements, now, this is not necessarily my opinion, but the opinion of a respected folk song collector