Kharon, the only logical conclusion is that CASA is corrupt and rotten to the core. That includes anyone who works there because by definition they are required to leave their ethics at the door when they join.
I was once asked to do that (at my first job with Exxon) and I immediately walked. To stay would have meant becoming one of them. You saw the depths of Exxon/Esso unethical behaviour following the Longford gas explosion and subsequent Royal Commission.
CASA's bad behaviour is on display daily, all you have to do is follow the AAT and the aviation press.