And a man who a world wide loyal fansbase who wear shirts saying "Whedon Is My Master Now" can't generate revenue?
Using that logic, "Serenity" shouldn't have tanked. But it did, big time. The fanbase can't generate enough revenue to pay Fox's bills. Advertising revenue can... that's what show "business" means. Besides, nobody but Joss himself is going to take a bunch of people wearing "Whedon Is My Master Now" t-shirts seriously. Would you?