Confound it all

First of all, my ringtone is now set to "Phone Home" by Lil Wayne.

Second, yeah, I deliberately went with the teachers on that one to see where it would get me. But your response is interesting, and it is actually exactly what I wanted, because it gets us closer to the root of the question: what the hell are we talking about when we say "the good?" You made the claim that the random sampling of 100 homeless folk could contain more utility than the other two groups, what kind of good are they bringing about? (I am not asking that question because I think the homeless have no value, but because I think it could get us closer to our meaning of "the good")

See, here is something interesting that you may not know, I had plastic surgery (technically) twice, same procedure and all, just twice. I can honestly say that it boosted my confidence incredibly, so even plastic surgeons can have some utility, even if they mostly just pander to stupid women and men who needs lots of actual plastic in their bodies, and they can have negative effects on people when they screw up, which they do all the time.

Even a random sampling of teachers, and I mean real teachers not driving instructors, I wouldn't allow them in the pool, I think have the potential to do some real good work. Especially when it is K through 2nd grade, even just having a decent attitude most of the day and speaking with kids that young can do wonders for their development. But yeah, some teachers suck ass, especially in America, but if it is a random sampling then it can be international, if so the stock of good teachers may grow in size, or diminish, hmmmm.

So what "good" does a homeless person contribute?