 A cleric may be punished by the church for violating the tenets of the faith, but alignment doesn't affect any class abilities.Thus, a cleric of the Silver Flame might be greedy or corrupt, or perhaps loyal to the church but willing to torture and kill in the interest of the "greater good".One well-known example of such a cleric is the de facto ruler of Thrane, High Cardinal Krozen, who is lawful evil.