Also at Barnabas Ministry is a book review of Ken Blue's Healing Spiritual Abuse: How to Break Free from Bad Church Experiences. Though I haven't yet read the book, it looks like a fabulous resource. One passage quoted in the review is this:
The second classic type of spiritual abuser is the heroic, grandiose or messianic narcissist who is obsessed by a desire to be someone great or to do something unprecedented for God. Carrying out this fantasy requires the cooperation of others and access to their money. Like the first type, this leader may not consciously wish to hurt anyone; but others are hurt as they are used for the leader's and God's "higher purposes (p. 111)." In order to achieve the public support they need, these leaders make extraordinary claims for themselves or have others make them in their behalf. Such claims may include a special anointing, unusual personal sacrifice, unprecedented encounters with God, unique training, a singular teaching or leadership gift, a revelation of truth that is not available to others, or secret knowledge of God's end-times purposes. These and other claims imply that God has a special calling on this leader, and so it is the "unspecial" people's duty to admire and follow him, which they often do in droves (p. 113).