I have a fun little anecdote to share. I feel, not so much guilt, but the feeling that I should feel guilt.
I moved to Seattle about seven months ago, to go to school. I had a friend living about 600 miles away from my home town, in a different state who was working a job that he didn't really care about. He and I were in high-school together, and from the get-go it was mostly me giving orders and him following them. That's just the dynamic of how our friendship worked.
I convinced him to quit his job, move 600 miles from his friends and family and take over my old job, and I convinced my boss that my friend was the perfect candidate. The pay was better for my friend, and I was able to "keep an eye" on everything from afar, so to speak. Things didn't work out in Seattle, so I returned. Of course, my friend was in my old position, and due to the office politics, the only way to get in was for someone else to leave. So, I found a better job than my old job up in my friend's old town (where he moved from) and pressured him into quitting this job (after only 6 months) and taking the job in his old town, 600 miles away. His last day is next Thursday. He is taking me out to dinner on Monday to thank me for all I've done for him.
In short, I get what I want (my old job back), he gets what he wants (a better job in his old town), but somehow, I feel like I should feel guilty for using my friend like a 'pawn' like that.
And that's my late-night, I-can't-sleep story.