How often has a plan for greatness been derailed or spoiled by some careless or foolish lapse of good judgment or morals? Many a politician has met with downfall because power and prestige went to his or her head, resulting in bizarre behaviors that cause them to stumble.
Similarly, many prominent preachers or religious figures have become filled with the importance and power of their position, and the money and influence that it brings, and they are brought down by actions they thought no one would notice or care about.