It's okay, not many people are aware of the fact that he's now a Monstercat heavy-hitter. He probably HAS made a fair amount of money off of it, but a lot of his original stuff is where he makes his money (especially since he signed with Monstercat). Although you are probably correct in that he only puts some money into hype for it, so he's still making a large profit from a money-spent/money-made perspective.
Plus, there's the hype factor. He's raising hype for the Zelda games by releasing the stuff. From Nintendo's viewpoint, he's advertising their games for free. Sure, he's making some money doing it, but not the same amount they're making off of the games. So for them, taking him down wouldn't even be that beneficial.
In THIS case, though, Brad is drawing more people towards his music as opposed to the (*ahem*) "fashion" company, I guess, and since they aren't gigantic like Nintendo is, they want to get him off of their brand name. Not the same viewpoint. So it's a complex business thing. (I think...)