Conflicting Disads - Cannot Harm Innocent's and Honesty

[Godogma]

Hal, as the GM I must say that the player stripped all context of the game scenario from it except the most pertinent facts. Here's some context.

Character is a female Knight; aka a combatant in the armed forces with the disadvantage "Will not harm the innocent" that's fine - Slavers are by no means innocent even by the broadest definition of the term.

Slavers attack; regarding pretty females as valuable property and trusting to their methods especially as have a means to stun and bind them and such at hand.

Knights being attacked by slavers capture them after they all go unconscious during the combat by failing rolls. Slavers are currently bleeding out and can be left to die handily. The Knightly character doesn't do this (though as GM not sure why, but even though Kal and I have played in each other's games for many years we don't always see eye to eye or understand what exactly is going on inside the other's head). Instead opting to capture them, then delivers them to the militia.

Nowhere is a civilian involved; you have two classes of people involved - the military and idiot slavers who took on people who were too big a bite for them to swallow although they outnumbered the knights in question near 2 to one. (Regarding the person who was talking about noncombatants being expected to exert summary justice).

The kingdom in question has the same policy of death vs rapists and kidnappers as well as murderers; capital crime within the borders is on a downward trend and magic makes interrogations easy.