Yes, but once you're aware of these factors and leverage them for personal gain anyway, it's evil. It's not like it's impossible to make out the bigger picture on many issues, or to ask oneself if the upsides are really so great that it's worth being responsible for the downsides.

This is equally true for leftist projects. If one is dedicated to the cause of improving the general welfare and creating economic and social opportunities for as many as possible, that's laudable, but you can't use it as an excuse to just ignore the human rights whenever you run into a problem or a tricky ethical situation.