Despite the name of the thing.. they ALL help gold and stone atm. Like, brewmaster and that sorta thing -- they're all set to gold and stone right now. Every single economic boosting follower.
Also... I don't think the Runesmith hero's runes at the end of his combat line are actually enhancing his stats, but I'm not 100% sure on that one.
Errr this is for festag beta... hopefully I'm in the right spot.