If you add it all up, Morsayati's goals and ideals are pretty clear. He wants to destroy dragonkind and rebuild the technological human civilization that existed in ancient times. He believes that the time since the collapse of that civilization has been a period of human subjugation by the dragons, and that Ilia's efforts to make peace with Elysium and fight against him was surrendering humanity to slavery.
This is all made clear woth the way he refers to Alberius's sword. We've never heard of it existing til now, but all signs point to that sword being a weapon forged from the original Dragalia, the stone born from the peace created by Ilia and Elysium. Yet Morsayati calls that sword a symbol of slavery.
A lot of Morsayati's specific history and motives are unclear, but we do know that the ancient civilization intended to use him as an ultimate weapon against dragons, and that he still, by all appearances, wishes to continue in that role. Of course, this chapter really emphasizes the unreliability of Alberia's known history, so I'm guessing that there are many more revelations to come about what and who he really is.
I like how the story really presents a lot of the world's history as being controlled by different factions trying to act in their best interest, rather than shallow takes on beings of pure good and evil.
You have the ancient humans, Dyreknell Empire, Morsayati, Leonidas, and possibly Phares, who want to prosper in a world of technology free from draconic control.
You have the dragons, who see technology as a grave threat to their own existence, and are willing to massacre and subjugate humanity if necessary in order to protect themselves.
There are humans like Ilia, who are willing to abandon technology and live under draconic supremacy if it means avoiding cataclysmic war. Or similarly people like Chelle and the big tough brother I can't recall the name of, who are willing to bend the knee to whoever is strongest, as long as it brings peace and stability.
And finally, you have people like Alberius, Aurelius, and Euden, who are capable of convincing dragons of humanity's worth and establishing friendship and equality with them.
The story so far has been a big struggle between these four ideologies, and I am looking forward to more of it. I'm just curious if the rise of Morsayati and introduction of androids will cause some of the hardline anti-human dragons to enter the stage as villains.