Well, Olympia is from Olympus, home of the gods. She's a Psychic leader but gods don't necessarily mean Psychic. Maybe it's a reference to the Oracles of Greece who could provide info about the future and were inspiried by the gods supposedly (when they were really just getting high).
If life gives you lemons, sell 'em to Tom Nook. Black 2 FC: 0132-9980-0476 (Aki), 3DS FC: 5284-2520-2972