Judging on what we saw in Brayflox HM, I'm going to go out on a limb and theorize that the Illuminati goblins are probably Alexander's version of Tempered: Illuminated.
Historically in FF, Alexander has been aspected with Light and/or Holy as his elemental designation. Therefore, light = illuminated or enlightened.
Historically in FF, Alexander has been aspected with Light and/or Holy as his elemental designation. Therefore, light = illuminated or enlightened.