Ahem. I think you'll find the same across the board in politics and 'senior' union roles. It's not "those poor hard done by politicians" - you never see a poor dentist, and you never see a poor policitian:
http://www.huffingtonpost.co.uk/2011..._n_960109.html
http://www.dailymail.co.uk/news/arti...king-100k.html
http://order-order.com/2013/09/19/at...labour-leader/
and
http://order-order.com/2012/10/03/mu...is-own-wealth/