I am not quite sure. Ultima calls him Mythos, his perfect vessel. There have been none before him who are able to carry more than one eikon.
No, they are not fair.
Some view them as gods, I am less inclined to use that word myself. For long now they have been used for those waging war to gain the upper hand. Those with a Dominant in their arsenal held more power than those without.
The eikons bend to their Dominant's will. A few of which preferred to live in the chaos of our world. Now that Joshua has taken the power of all but mine we will use that to challenge Ultima.