That’s the trade off! Sweet liquid cash, or what’s in… the box? For what it’s worth, I choose the box every time.
No roll necessary. The scene is quite intuitive, and you all know Mor’Lag enough at this point to know both that she doesn’t go around looking for trouble but has some raw spots when it comes to the horde and other ogres; so Mor’Lag’s declaration “She started it” is very believable.
For Jakk’ari and Isaera, its seems likely that the other ogre did something to push Mor’Lag’s buttons, it escalated into a fight, and the rear of the dog pile just evolved naturally as bar brawls do.