delericho
Legend
I think orc is a bad example. There are no modules nor APs that have orc encounters in them (that I can think of).
Bad timing. The first adventure of the Giantslayer path has just been released, and features orcs quite significantly.

Beyond the bestiary listing for orc, among the monstrous humanoids in PF, orc is mostly absent. I don't think there are any mentions of orc societies in any of the setting guides either.
They're in "Classic Monsters Revisited", which was released some years ago.
That said, the characterisation of them as "rape fiends" is an exaggeration, to say the least.