Rohe's theorem: "Designers of systems tend to design ways for themselves to bypass the system."
Or more generally: those who create or advance a system seek to prevent themselves from being exposed to it, perhaps as they have intimate knowledge of the faults or the predatory nature of the system.
Examples:
In some cases, the following sayings relate: "never get high on your own product" and "Those who say the system works work for the system."
There are many more concepts in my "Mind Expander" tool (it's free)