?????
On one side we have:
-A hardliner traditionalist coup whose greatest intellectual feats were "we found this in ancient lore" and "i dunno, I guess I'll brute force this without any understanding of what I'm doing" and just completely using up resources without any understanding of how they work. There's no indication that this method can be used by anyone else. And the ideological justification is... an inferiority complex that's leading to an elaborate suicide by Palace Coup.
The other:
-A scientist and her clique of supporters whose greatest intellectual feat is step forward in the understanding of the underlying principals and can be replicated from small applications of gathered materials. This method is attached to the production of new consumer and industrial goods analogous to industrial development. She don't have any ideological justifcation other than a love of the process, but just the fact of her blazing a trail is going to allow for the proliferation of the technology, and the other members of her clique do seem to be promising just that.
Al's success is... A vampire king backed by hardliner traditionalists who has totally promised that he'll restore the social peace by making the bad people pay. It'll just reify the existing order! The opposing success is almost certainly going to expand a bourgeois industrial class weather she wants to or not.
There's no contest.
You're basically taking a bunch of his lies at face value and ignoring his actions. You seem like you're attracted to the aesthetic of power rather than any meaningful technological or social advancement. He wasn't more radical in ideology or technology, he was just like... the only possible reason I could see for taking his side in this matter is that his issues are sympathetic and maybe his gender?
What good is immortality if only the King gets it?