I feel the need to disagree with you a bit here. The belief in a god or higher power can drive people to do terrible things, regardless of any form of organization or power structure.
Though I would also argue that the concepts of "religion" and "organization" cannot be separated. To be considered a religion, one would expect an organized set of doctrines, values, etc., likely taught by a spiritual leader or practitioner. The heirarchy of student and teacher is intrinsic to religion. The enlightened, and the lost.
Further, faith/religion based views on the world are, in my view, inherently "unscientific". If you already feel you have the answers to lifes big questions, what motivation is there to continue research? Or even worse, could they end up wasting resources on religious pursuits.
Anyway, just my 2c.
It would be-hoove them to keep looking