So this is probs obvious to anyone who's thought about it for more than ten seconds, but a big difference between Gabriel and Mathias and the one I think that causes their fates to diverge is accountability.
(On an in-universe level there's also reverence and faith in god but let's maybe stick to more universally applicable traits whoops.)
Mathias actually for real seems to believe that Sara's ultimate fate is not his doing, but God's, while Gabriel never denies having killed his own wife despite having provably been under mind control at the time. He literally never brings this up to Zobek ever. This is PARTIALLY because Lords of Shadow just has kinda goofy writing in general, but if you take it for what it is then it explains why his son is willing to just... ask him to stop, while Mathias's son never bothers.
Gabriel believes he has at least some level of control over what happens in his life, and his crisis is over the things he believes he cannot control. Once his son turns up and says no, there IS something you can do to change the direction of your life, he switches tracks almost immediately. He only needs to be convinced that all the uncontrollable factors have been accounted for.
Mathias, Dracula, literally believes he has zero control over any of the things he does. He keeps resurrecting? Humans keep calling him back! Your girlfriend is a whip now? God didn't stop me! My son stands against me? That's because his human blood makes him naturally gentler, if he's turned into a full vampire he'll see sense! Like he genuinely doesn't seem to believe that he can just... choose to stop lmao, and so there's no point in reasoning with him. Nothing that's happened is his fault, so until the world changes he'll just keep doing what he has to. He has no choice.
He also just seems to lack Gabriel's natural urge to Be Good, but I feel like that's not as big an obstacle as him attributing all his own choices to everyone else.
In Grimoire of Souls he and Alucard have a conversation where the word choice suggests that Dracula can absolutely just choose not to answer a summons, but also that Dracula's "evil intent" is forced upon him by /waves hands at Aria of Sorrow's plot. The latter is suggested by Alucard, which gives it more credence than if it came from Dracula. Which might undermine my point, but I feel like it's just the final nail in the coffin of Dracula's belief in his own control. If he weren't already predisposed to an "everything that happens is God's plan" attitude he'd have an easier time fighting it. Or at least try. Like Soma.
Meanwhile Gabriel is out here like all you have to do is convince me that the choice to not be an asshole won't make everything worse, and I'll make that choice. Hell, I would rather make that choice. Except for Chupacabras, fuck that guy specifically, I'm sick of his shit.















