There are no explicit and uniform policies, and one as such, if it were real, likely would be well known.
However, even such a policy would seem unlikely to make much difference practically.
It is abundantly clear that the system reproduces itself by being good only to those who are good to the system.
Anyone who carries deeper curiosity, or inclination to question, the dominating systems of authority, power, and ideals, is unlikely to last long under an oath to protect them.