It's just an office wank. It's not a big deal. The guy had the a cosy little private time. He was alone. Nobody was hurt. Women do it to. Its not even a gender thing.
I'm starting to wonder if you have a comprehension disability.
The guy didn't rub one off in his own office. He made the conscious choice to wank off on someone else's desk. In this instance a Federal Member of Parliament. Your faux indignation is meaningless. Tell me where you work and I will happily cum all over your desk.
I won't piss or shit on your desk mind you. Apparently that is different. Jizzing over your desk is fine fine shitting crosses a line.