Just throwing out a wild guess, I think the punishments the system gives are equivalent to what "villainess task" Yvonne has to do. Since the first chapter involved literal murder (and the points given are either 50 or 100), that's why she got exiled for going against it.
The second chapter's rewards were only a piddly 5/2/0 points. So I'm guessing if she ignored them this time, the punishment wouldn't have been as severe. But hey she wouldn't have gotten the "waterworks cg" if she did that so win/win?