I think you're dead on the money because people don't see the difference between MPs and ministers; they see them as politicians. The politicians should know that just because they don't put minister before their name and MP is after their name, they are still ministers when they sign a letter. People don't distinguish between the two. It's not something people would recognize. You are still a minister of the crown, whichever way you try to cut it.
When you were talking about shame and increasing the monetary penalties, you made reference that you hoped the Prime Minister would respond to the Ethics Commissioner on what course of action they would take. We don't see any response or acknowledgement when it does happen.
How would you compel the Prime Minister to take action on something that came from the Ethics Commissioner?