My brother has had life-long, serious mental health issues, and it's only been because of both medication AND life-long therapy that he has been able to reach a baseline of normalcy and being able to function. I think if you have a serious underlying mental health issue, that it often takes both the meds and therapy. I also don't think most psychiatrists feel they are "playing God." I think most genuinely want to help patients get better, to the extent they can.