@facade1984 has told me similar, and thats not my point. Supplant 'underground' with integrity and thats clearer. Yeah I'm a purist, I give a sh1t about the music and the culture, and I hate when these things get overriden by money.
Why does this wind me up? I found this music and its culture when it was a counter culture, it was new, inspiring and exciting and I had found 'my people'. When the commercial element began to creep in my overwhelming feeling was 'just leave us alone, let us have this'. That doesn't infer any gatekeeping or elitism, only that the influence of commercial drivers is always negative for something that is driven by arists etc who are developing and maintaining the culture around it.
It would be more palatable if he had moved to producing the EDM rubbish under a pseudonym (or not....) but kept producing what I had assumed he loved. Being overt about wanting to maintain a lifestyle with earnings from the EDM crap but continuing to pursue the genres that have that integrity is understandable and defensible. In my personal circumstances if faced with the opportunity to earn $ to get rid of the mortgage etc, this would be my choice, because as others have said it would be foolish not to. But I think it can be done while still contributing to the 'underground' culture. It's a matter of if a person cares enough about it, or ever did.