Of COURSE Lawyers would consider it Sacrosanct... a Sacred Secret, only to be known to the High Priests. Lawyers worship... themselves. Try to challenge them in a discussion on any kind of ethical question: They will, without exception, recognize a power higher than Justice, higher than Truth. And that power is their reputation before their peers.
Crooked lawyers are never dealt with by the legal community until the community is shamed into doing it by the public.
I'm a firm believer or stripping Doctors and Lawyers from being allowed to 'self-regulate' their ranks.