I think it definitely helps that while Kobolds did and can do bad stuff, they are almost child-like, they had nothing and nowhere to go after the Last Dragon died and are just pretty much ecstatic on the idea of following you.
It helps that the ones who seemingly have higher inteligence than normal are Breaker and Issa, with one being rather traumatized (despite being well a monstrous torturer who cares only about pain) and the other one trying to make the kobolds become better.
Also singing "Gold!" with them is obligatory, no other option.
Yes! Its mandatory sing-along. No doubts here.
And kobs do have this innocent cruelty of a child tearing bugs legs off. Gets kinda creepy when they are not child-like anymore though. I mean - both Issa and Breaker are cruel: one overtly and the other covertly; and both of them are traumatized: once again, one overtly and one covertly. Honestly, I think both of them are not unlike each other. Only one survived seemingly in some gutter and the other had decorum of palace put in him - in every sense.
I trust the Pack on Issa. And they called him a natural killer not unlike they themselves.
Also, coincidentally (or not?!), Issa is also Arabic for Jesus. Take from this what you will. Personally, I think it may not be a coincidence. I have suspicion our cute green minion is planning to give his people some kind of deliverance - though, less of Jesus and more of Moses variety.
Honestly, I'd be surprised if there won't be an ending with him stabbing us.