Someone That Truly Cares Sacrifices Themselves For The Greater Good, They Don't Sacrifice Everyone Else To Save Themselves

ma·ni·a·cal /məˈnīəkəl/ adjective exhibiting extremely wild or violent behavior; "a maniacal dictator" INFORMAL exhibiting or denoting obsessive enthusiasm. "his maniacal obsession with conspiracy theories"; HE'S NOT EVEN RUNNING FOR OFFICE