If Shakespeare was alive today, he would already have penned a tragedy reflecting the lack of ethics as continuously reflected in procurement activities world-wide.
"To take or not to take -- that is the question. If I get discovered, I might suffer slings and arrows, however I might have amassed an outrageous fortune. There may be a sea of troubles it may cause, yet I can always (with lawyers) oppose and thereby end them!"
I have often had people come to me and ask how to proceed when a decision "path" is somewhat grey. I always ask them "How do you think this would play as a headline in a newspaper?" I always see a shocked look and they say, "Well, that would be taken out of context!"
The reality is no one asks for guidance on a potential ethical issue, unless their gut is already saying this shouldn't be done.
Yes, there are always two sides to every story, and the one that results in the best headlines usually wins; and this doesn't always mean it's the absolute truth, but perception is the reality.
To paraphrase Dr. Phil -- "WHAT WERE YOU THINKING!"