Board Thread:Wiki discussions and announcements/@comment-1990160-20140521040036/@comment-4022742-20140522161204

This would be valid, if we'd have values for everything. Right now we have a golden chain with 2-3 links missing in the middle that effects anything that has an active, aura or passive effect on top of base stats.

And we have no proof that these passives are even calculated using a gold efficiency model, but instead have more evidence that items are balanced on (public/in-house) testing and based on the consideration: "is this gold cost balanced proportionally to the effect it has?"