Where is the difference between this guy and the one who risks their lives and their childrens' lives by being a missionary in some place where their work can be punished by death? If anything, this man is more sane as he isn't risk his life and the lives of those close to him.
P.S. I'm a religious guy myself, but I am seriously asking this. In many ways religion itself can seem to be a mental illness if it weren't so popular.