@SarahGen-- I think that the end does justify the means. But it all depends on the circumstances.
For example, we all would agree that it is unethical to torture someone. But if torturing that one person will allow us to get information that will save the lives of 300 innocents, wouldn't it make it acceptable?
So it all depends on the circumstances and the options. If doing something unethical will lead to a result that has great benefits, then it may be right to do it.