On 2009-04-14, Ben Lehman wrote:
When I say nonsense words like "carefully arrange their responsibilities and self-interests," that's the kind of thing I'm talking about.
So I think that this may be a red herring or, at least, there is not going to be a reliable best practice with regard to whether or not people have responsibility over their own self interest. (I have a lot of theoretical blah blah to describe this, but ultimately it comes down to "well, that is my experience as a designer.")
I think that, consistently, the thing to arrange is not responsibilities and self-interests, but social expectations of self-interested versus anti-self-interested behavior, motivated with an understanding the difference between a player's fictional self-interest vs. mechanical self-interest.