Long long ago I came to the decision that JWs obey the WTS because of WHOM the WTS claims to be (God's sole channel of communication on earth) regardless of WHAT they say.
The WTS always says: obedience is paramount. Read their propaganda, it's all about the rulership; it is authoritarian.
Any suspicion of dissent with a currently-held position is treated harshly, even though the WTS could later amend its position to that "heresy". The test is obedience, and this is what Jesus and Jehovah were looking for when they selected Rutherford in 1919. The WTS knows this is true because they say it is true.
Doug