Very interesting Mike. And your summary of their main, second and third jobs also applies to most people in the corporate world I would say. The number of pen-pushing middle-management imbeciles that earn more than politicians is embarrassing. I still think a hefty pay rise is in order for them to improve the quality of MPs but the people would never allow it.
Discussion
Many people share your opinion about a pay rise. I am undecided.
The WEF penetrating cabinets with their "young global leaders" is part of the problem. They get handsomely rewarded for their work. Failing upwards is one of the perks.