Well, Felin's destruction is caused by his disasters, and he is much more controlled than to go: "I don't like this place. HAHAHAHHAHAHA VOLCANOES AND STUFF HAHA DEATH HA." His job is to destroy with nature, to make sure that nature is in balance with man. He keeps expansion in check, and he makes sure that uninhabitable areas stay unchanged. He believes that man should not try to control nature, or man will feel his wrath.