When you don't have access to a subject, and all you have is ex-members and critics, there is this gravitational pull toward telling a certain version of events. Scientology would say this, and they have a point, that it's like doing a portrait of a marriage in which you're only hearing from the ex-wife and not the ex-husband.

A lot of things that we cannot buy and sell in markets used to be totally legal objects of market exchange - human beings when we had slavery, child labour, human organs, and so on. So there is no economic theory that actually says that you shouldn't have slavery or child labour because all these are political, ethical judgments.