Bruce,
Let's back up and be a bit more careful.
I know you are basing most of this reply on Phil 1.15-18 and part of what you are saying can be held up under this passage.
The anointing is the yoke destroying, burden removing power of God, and a non-called false teacher preaching out of self motivation, jealousy, contention is preaching out of the flesh, not the anointing. Under this scenario, then if they do preach Christ it does what you are saying so and confirms Phil 1.15-18.
A God called, approved, validated and sent 5 fold gift will never preach a false doctrine and always preach from the anointing.
under this scenario phil 1.15-18 is still confirmed.
What is not quite accurate here is that called man of God teaching false doctrine and that he is preaching out of the anointing
We could start a whole other thread on the simple fact that today we have far more self called people in the body today then we do have God called, approved, validated and sent gifts in the body.
A self called gift is deceived and has no gifts that could become irrevocable, therefore there is no anointing upon them or in them.