The whole system is a scam, so examples can be drawn from any point, from the politicians who wave it through and cover for the execs, to the oil industry regulators who have been 'partying on dude' at the expense of the oil industry, but, we are assured by the investigators, without detrimental effect on the public purse - although in that case, why one should have to pay their salaries is perhaps open to question, is not performing their function has no effect.

My favourite though - sorry I did not bother to keep the reference - was the British fund manager, I believe in hedge funds, who was one of the few to get it right on commodity prices, and on the grounds of his genius paid himself some 40% of the profits.
If you set up 10 management accounts, and had no knowledge at all of what would happen, whether prices would go up, down or sideways, you would then be in the fortunate position of just earning your wages on 9 out of ten of them where your guesses were wrong, plus of course guaranteed bonuses 'to attract the calibre of staff needed', the losses would be someone else's.
On the remaining fund where your guess would right, you would make out like the scamming bandit you are, and all without knowing anything at all.
In fact, the managers perform on average no better than chance.

It is exactly the same as if you went into a betting office, and an 'advisor' placed bets on your behalf on all the horses in a race, merely charging you a fee for placing the loosing bets, but took 40% of your winnings on the one horse which won.