In Wizardry: Labyrinth of Lost Souls, I've found a Daemon Statue as part of my character (Human Fighter) quest.
I can sell it to Ironhand the item shop owner for 3,000G, but since I've got several hundred times that in spare cash already it doesn't seem like a particularly good deal. Still, it's implied that selling it for money is the hero's "plot" goal. Whether I sell it or not I get a "quest progress" chime.
Is there any reason to keep the statue? In older Wizardry games statues had strange, but often important effects.