From what I understand the GB have been traveling more and more in the past 5 years giving special talks. They are put up at 5 star hotels and fly first class where I am sure they enjoy expensive meals.
They have unlimited expense accounts.
But that isn't the reason to stay, they have power. It is a creepy macabre celebrity but they have no education, a lackluster life, but are treated like rock stars where ever they go.
They don' t need to do hard work, they just sit around and bark orders in between luxury vacations.
I wouldn't be surprised if they farm contracts out to family members where they can with a nice healthy kick back to their personal accounts.