Although you make really valid points, Hofnerite, I don't entirely agree with you.
If no-one wrote songs simply to make money, there would still be a music industry. It just wouldn't be the one we recognise today. People want to hear quality music, and I think history backs me up when I say it's the true artists that have sold the most units, not the in-it-for-the-money crowd. As music has become more manufactured and less risk-taking, record sales have dropped year on year, not just as a result of digital media.
I think any professional musician should make a decent living, but I also think that being paid as much as the big players do is bad for music in general. Not only does it attract the kind of person who wants fame and notoriety more than they want to make music, but it often tends to remove the artists somewhat from the experiences that inform their writing.
As for Rufus not being pop - I think he's pure pop. If you strip the songs back to just melody and chords, I'd say 80% are simple pop songs. Yes, he does tend to cram them full of campness and operatic drama, but that's what works for him.
I didn't have a problem with Guy Chambers taking the lead so much as his apparent disdain for Rufus at times. To use your analogy it was a little like watching a Maccy-D's chef telling a Michelin Star chef how to make a popular dish.