Unfortunately you ARE focusing on the wrong side of the issue.
Stop thinking about where links go (and what goes with it) - because you really can't FATHOM all considerations.
You, me, we all have a very, very limited understanding of what is actually occuring offsite (after our so-called "leak") - thus we rationalize (because we don't know) it must be bad for us.
That is a very narrow vision of the web.
The greatest problem face by SEOs, clients of SEOs and anyone that actually has a miniscule amount of knowledge about PageRank - you make yourself the center of the Google's web universe -- and really you're not!
If you rationalize yourself at the core of Google's PageRank formula you lose in Google's algorithm!
netnerd - You will see the tangible green bar climb - but your ranks will take far longer than if you leaked to what's worthy around you. ;)