My point is that Sasuke does that regardless of circumstance. Besides Gaara, no other kage would rush to the leaf and help them. The only reason they fought was because they were there.
If the leaf was attacked or whatver and needed help I'm sure Orochimaru would too. And, technically sauce aligns himself with the ninja world, protecting the leaf is just a plus.
I'd put him as being held at the same regard as a village leader, at least among the Kage. I mean, he addresses them by their first names and tells them what he's gonna do instead of asking permission or taking orders.
Classic Sauce