I always felt that it was unfortunate that when culture got disassociated from Piety and placed into Aesthetics, Piety was left as the only Ancient Era policy tree that had no direct benefits to your culture output, until the finisher (and even then, not that much). It makes it really hard to open with Piety and keep up with the culture of a Tradition or Liberty player, or even Honor! It's ironic since Piety used to be THE culture tree, and now it has nothing unless the early shrine helps you get a culture-producing pantheon. I wouldn't mind a +1 culture for shrines/temples in the opener or in Organized Religion.