You can google "The public Trust" and it's importance. Most commonly discussions, philosophies will relate back to government. When the "public trust" in government erodes to a certain point. Well anarchy is the result and we are seeing signs of that in the States, accelerating signs these past 10-15 years.
Our profession here in Canada got the message back in the nineties, and we started to change the culture. Stiffer fines and penalties for various abuses, mistakes. And further, having those wasn't enough, "enforcing" those penalties. Laws or regulations aren't very good unless they have teeth and theres demonstrable follow through.
Leo hasn't gotten the message yet.
See the G20 and nothing but one mid level superintendent being thrown under the bus.
https://en.wikipedia.org/wiki/Public_trust