Wrong again
The left never had any problem with making money from performing
The problem came when people like Kennedy bagan copyrighting and selling it
MacColl (correct spelling) and Seeger earned money as performers - that could have been much richer had they sold out to the big boys
The only big money came from a love song Ewan wrote for Peggy which was taken up nearly twenty years later
Ewan and Peggy devoted their lives to working with less experienced for free
They opened their home and library to people like me weekly for nearly ten years - while the superstars were working away at their own careers
Even the hundreds of songs they made were handed out on request
Bert earned his money as a jobbing researcher, broadcaster and writer

Can't speak for Lomax but I suspect that there are as many Urban Legends and Chinese Whispers about him as there are about MacColl

Kennedy was the only shark in the bucket - he ripped of singers and the taxpayers and he attempted to copyright the material he collected - a thoroughly bad caharcter
He got away with his behaviour because he had friends in high places
   
I'm afraid your obvious lack of knowledge of the folk scene has given you all the prejudices that bedevilled and soured the folk scene for so long

There used to be a very telling joke doing the rounds - "how do you MAKE $1,000,000 from folk music - start ofF with $2,000,000"

Please don't lower this discussion to folkie backbiting
Jim