I don't believe they need the money, I really don't.
Sorry, but the more bad performances Scott puts on, the less people will show up for shows. That's the way it goes. No, there is no contract that says they must perform well...however, just like the free market, the "fool me once, shame on you, fool me twice, shame on me," as well as word of mouth, will destroy the band if it starts to be more like Detroit's Vasoline and less like 2000's HOB Los Angeles performance.
Perform good music well, you sell out and make money. Perform good music barely better than a drunk bar band, then you'll be playing for beer at some bar.
The problem is, it wasn't that long ago that we were getting a prolific, well-playing band. from 1999-2002 they put out two records and put on some great, great shows. Most of them were sober.
Now, the band can just sound terrible at times, and starts with Scott.