This doesn't hold true for all
link building, such
as broken link building (I find that getting straight to the point for this strategy works best), but it will hold true in things like media news mentions and imbedded content.
Sometimes it is not in our best interests to
build out and rank a page or domain specifically for long tail term (such
as for the improved conversion an exterior site might allow)-- or perhaps, sometimes it is simply easy for us to send an extra
link or two to these pages in our
link building efforts — such
as using the page
as a secondary resource when
broken link building — see my example in this post.