Teachers who keep people from awakening

When I read Nisargadatta, or Ramana, or Buddha, or Osho - or any great master - their messages of both love and wisdom really can't be unravelled
and separated.  Yet attempts are made to do so all the time. Typically it's somebody pulling some words out about nonduality, or Advaita, or emptiness, or the non-existence of self. Yesterday Kana Koray (a Second Life pseudonym) talked about Ramana and Advaita, and the "neti, neti." After a while he asked if there were questions and I offered my bit about the risk to Western minds of getting trapped in emptiness fro contemplating neti-neti, and that one can't fully awaken without attending to the heart - that I know people stuck in the void of negation. He defended back by saying we will talk about the heart and compassion next time. But shouldnt it all be shared in one breath? What about the people who won't make next week's session?
SHOULD ADVAITA OR ANY OTHER TOPIC pointing as closely as possible to the truth be dissected out and put on a plate? Western mind loves to do that, including mine. Doesn't make it right, or effective.
Kana has constructed a 6 week course called "New Heroes Journey" based on Joseph Campbell with his own ideas and interp[retations thrown in. He asserted that he is awakened. Last week he instructred people to look at their pride -- or arrogance. He has said also that he puts in 6 or 8 hours to prepare for each session. Hm? And, the whole thing is put together to provide the basis for a book he will write.
Where am I with all this? Why do false teachers, or even those who don't come close enough to the truth, annoy me? Do I have the wisdom to do anything about it? When I speak out, which I often do, is it effective? I can't seem to know this right now. All I can do is to stay in the center of it, in that moment...and hope for more wisdom. All of it, always, felt or not, coming from the great heart,