What worked for Breen likely won't work for Reshul.
The two reasons it worked well with Breen is because Earth, compared to this galaxy, was relatively isolated. Our occupation of Earth made holding the entire species at gunpoint super easy, which in turn, meant telling Breen to do whatever we wanted him to was super easy.
Breen was facing unimaginable pressure, carrying the entire world. He was practically the only thing standing between humanity's free will and the Combine just wiping away every trace of their individuality and freedom. There was no other faction out there in space that would have saved Earth... If there were, they were in hiding or were already assimilated into the Combine.
For as tyrannical and cowardly as Wallace was, he still had humanity's interests in mind, which made him the perfect pawn.
Now let's look at our current situation in comparison.
Let's assume that we're able to take Nar Kaaga through Asmodemus' plans and force the Hutt to submit diplomatically. Let's assume that we get to a point where we're able to make a decision to have him work for us.
What is the primary difference in this case that sets Nar Kaaga apart from Earth?
Right. Nar Kaaga is actually part of an interstellar community.
The fact that the Holonet and the Hyperdrive exist means that someone living in a place like Korriban, for example, will still know about what happened in Endor all the way on the other side of the galactic map.
Feel free to correct me if the Galactic Republic's reach extends that far, in this current time, though.
Nevertheless, what's my point?
Well, unlike Breen, Reshul has venues to work with in case he's ever put in a position where he has to rely on outside help. I assume we will be keeping a tight grip on the information that comes in and out of Nar Kaaga once we take over, but still, it's never going to be perfect. I genuinely would not be surprised if Reshul becomes willing to reach out to anyone for aid.
That brings me to my second reason.
Reshul, as a Hutt, is likely much more self-centered and opportunistic than Wallace ever was. We can't rely on familial attachments to keep him in line, nor can we hold the entire Hutt species at gunpoint like we could the humans on Earth. Intimidating him only goes so far, and if we tip it too far, he'll become desperate.
If I didn't say it before, I'll say it now. I do not and will not trust a Hutt to manage our operations on Nar Kaaga without screwing us over in the future in some shape or form.
This is why I pushed for completely brainwashing him a few pages back. If we have to use his services, then I'd rather we strip away any and all cognitive dissonance.
Otherwise, kill him and find someone easier to control.
