Auditors failed on Enron…they can bribed to look the other way. Look at the 2008 Crisis, the Movie "The Big Short" where all the "controls" were captured and bypassed. It was/is mayhem.
All the controls in the world just don't work if the people are immoral. They will always, eventually, find a way to corrupt it.
Just saying. We need divine intervention for a fix that will work.