If you're asking if they are doing and teaching the things they do while deliberately knowing they're wrong or unsupportable, it's hard to say.
Since we are not privy to the thoughts of the GB and so few other Witnesses know them personally, you can't really know if they're sitting up there rubbing their hands together going, "Bwhahahaha" like Dr. Evil.
But, intentional or not, the damage is the same. People are being damaged by what they teach and they're profiting from it. That's corrupt.
Don't you think that many cult leaders drink their own Koolaid? I think they do, it's easier to do what they do out of delusion. Self delusion is a huge part of it, I think.