[gpm]

Disagreed.

You should personally should choose the lesser of two evils when those are your only choices. Promoting the lesser evil is not such an easy call though.

From a practical standpoint, promoting an evil, even if it's a lesser evil, has the potential for harming your own reputation as a reliable source.

It is also fundamentally morally questionable, of course what is morally right and wrong is a matter of much debate. Suppose a psycopath calls you up and says "I'm going to do one of two things, shoot a random 5 year old named Joseph, or shoot two random 5 year olds named Kate, which should I do?". Assume for the hypothetical that you know they are telling the truth, and there is nothing you can do about the situation but choosing what you say back. In my view of the world saying "shoot Joseph" still makes you morally culpable, even though you were avoiding a worse situation.

[craftyguy]

Alternatively, you can lobby for a different choice, or pressure the 'lesser evil' to improve themselves. Rarely do folks bother to do this though after they've made their choice.