I don't think Mikael really gives a fuck about being employed by the music industry. According to his interviews, he still works in a record store from time to time, and he said himself he doesn't care if an album really sells or doesn't. I'm sure it would be painfull for him to release something that everyone hated, but at the end of the day, if your happy with it...thats enought. I think thats when you see real honesty in a piece of art. Something thats written with no preconcieved idea about what people like and dislike. Its just there. It just is.
To me, all this stuff about Opeth becoming mainstream is just elitist screed. Like many have said, they deserve everything they get. If Mikael wants to start writing , 3 minute radio-friendly pop songs and make a squillion dollars, power too him. And mind you, the only way he could go mainstream is by making his work more accessible. It would sting, only in that I'm not going to be able to hear any more of the Opeth that I love. But hey, at least I have 5 great albums and Mikael deserves all the bitches and money. He's probably earned it. The question is, does he really want it?