First of all. They are not elected, They're selected, and they're not a leader, they're teachers who teach others the words of god
Spirituality, religion and health
Religious belief and practice enhance health and wellbeing, although aspects of this relationship are contested. The psychological literature suggests that the benefits to wellbeing flow from the social support, existential meaning, sense of purpose, coherent belief system and moral code that religion provides.5,6,7,8 All these things can be found in other ways, although perhaps less easily; religions “package” many of the ingredients of health and wellbeing to make them accessible to people. This has been their social function.