Richard Hackathorn's recent article on TD magazine on ethics in BI has a interesting perspective on a hypothetical scenario where the person's actions though legal are unethical ,as shown on the quadrant diagram in the article.
I believe in these situations even if the corporations have policies , penalties etc it is the individuals actions that could lead the corporation into messy situations . So in addition to the excellent steps that are mentioned at the end of the article , Employee education should also be made mandatory on these issues.A mandatory training on the lines of Environment and Safety that is essential for employees working in the manufacturing industry a training on Ethics is essential for "Knowledge workers".....
