However, I just voted to leave closed a question that was obviously about psychology, not engineering, and it got me thinking... Social Engineering is a branch of psychology, it has 'Engineering' in its name, and it does involve using known principles of an environment and manipulating them to achieve certain 'useful' outcomes - the environment of the human psyche, culture, etc.
Personally I think it's off-topic for this site as (in my view) it's about psychology, or engineering at a nominal or meta level only.
What do others think about this specific subject?
Also if you agree with me that it's off-topic, can you explain why? I can't nail down exactly why, but I think if someone could, it would help us to unambiguously define what is on-topic.