I think most charities trustees are required to be unpaid.
Oh and the charity comission is a very powerful organisation. They were the guys who took down Abu Hamza.
I dunno I've worked for and with a view charities. And other than being a bit conservative in maintaining surpluses. I've not been aware of much corruption or scandals.
Actually trustees on charities do very little. It's the execs who get paid the big bucks and have the real power.