I think that in some ways everybody is like Roger. Everybody thinks that when their friends have a problem, that they know the answer and that it's much easier to analyze the problems of other people than your own.
Intelligent policies will be largely self-regulating in the sense that the system of incentives and standards makes it absolutely ludicrous to not move towards clean, internalized systems of cost and production.
There is a very well-defined procedure that allows the Vatican to raise issues with a particular theologian about something that does not appear in conformity with the Catholic faith. It is not always easy to make this determination.