We almost lost our second Prestige point yesterday in Scars of the Third Crusade because of this.
** spoiler omitted **
I really hate gaming with chaotic players.
Well, in their defense, (and I can totally feel for you), a great deal of Season 5 and that scenario is a prime example, leave a lot of players/play styles/character types out in the cold. I've had two groups in face-to-face games ask me and the other DM to avoid running these as most players find them unfulfilling and boring, and it encourages them to do stupid things (half way through the dialogue "Ok, I don't care, I attack him just for something fun to happen", followed by over half the party, "I move here, me too."). A lot of the issue is, (from what I've seen) is the lack of fulfilling and well rounded scenarios lately and the abundance of ones that require players to be highly invested in a particular story and love RPing, not so much other aspects of gaming.
They tend to do a bit better in PbP games, maybe because it's harder for some players to steal the spotlight as much in dialogue, I don't know.