Question in regards to end game gear (Healers)

[JCT]

I believe the goal of every healer shoul be to minimize Piety melds as much as possible - and also shoot for gear that have no/low Piety, reason being that it only acts as a MP cushion, bringing no benefit to either your damage or healing.

So I looked through of the higher iLvl pieces of gear i.e. Genji and Lost Allegan and there seems to be a lot of piety. Should I forego some of these pieces for lower ilvl pieces that do not have piety?