I agree that social systems should be designed to minimize the amount of damage corrupt individuals can do. But that doesn't mean we shouldn't blame the corrupt individuals for their behavior. The author mentions regulatory capture and specifically refutes it as a defense for bad behavior. I also don't think it is possible to build a complex social system that doesn't rely on trust. I suggest reading "Liars and Outliers" (http://www.schneier.com/book-lo.html) if you're interested in this stuff. I enjoyed it a great deal.