I reckon the people who treat it like a business only rise to the bottom of the heap fairly quickly by themselves. Look at the likes of Scott Ian (he's not the only one but he's one of the best at it), he kisses arse, tries to keep up with the popular bands and then hangs off their coat tails wherever he can. But he reveals his own true colours.
No matter what Gene might have once said if he treated it like like a business only he wouldn't be as respected throughout the community like he is. Obviously he's in it to make money, we all have to make a living, but it's pretty obvious that thought either died along time ago or was miss quoted.