It also noted there was sometimes family members with him. and as @Julio_Geordio says, is that just an estimated cost that someone else would have paid comparatively, or is it an actual physical determined cost? Either way, I dont see it as something mental that the chairman of the airport getting is some sort of disgrace. In the same article it mentioned about previously one of the board members being criticised for using the fast track instead of queueing when the queue disaster was happening at the airport.