Essentially ethical problems can be overcome. However, they cannot be overcome by external methods such as legal systems or rules to address every ethical dilemma, but only by inner discipline and ethical restraint.
That is also why when a politician stands in front of a mirror, there is no reflection. They think that the Dalai Lama is a South American camilid with a theme park in Branson, MO. (Sorry. I think that I just had a Dennis Miller moment.)
There is another line to cross. Most field landmen that I have run across are woefully underrepresented in initial indoctrination into our field and continuing education, including the practice of ethics. They will never understand the dilemma of obeying one moral imperative would deny another. Not today so much, but in 2005, hands with 2 whole years of experience were team leaders.