I suppose there are some Adventist churches who have departed from the gospel, particularly with regards to Jesus' statement in Matt. 7:12 that we are to treat others as we would like to be treated. He went on to say that all of the law and the prophets hangs on this one principle. In the final judgement (when the sheep are separated from the goats) it all comes down to how people have treated their fellow human beings. Many Adventist churches tend to be belief-centric as opposed to people-centric. If you don't believe it, what do we talk about most in our evangelistic efforts? Doctrines. Having the right information! I'm not saying that what we believe isn't important, because it informs us of what God is like. But the devil is a better "believer" than the best Adventist we can find.