One should not intentionally misrepresent another person's beliefs unless one's purpose in doing so is to act in the interest of that other person.
Principle
Unless = "if it's not the case that"
If you're not acting then you shouldn't in the interest of → purposefully misrepresent person X person X's beliefs
Evaluate
To violate a principle = to refute a conditional
To rebut / contradict / refute a conditional or principle, you just need to provide at least one example in which the trigger is true but the outcome is false. (LEFT side = happening, RIGHT side = not happening)
If the principle were , then violating that principle would feel like, X applies, but we didn't do Y.
Since we had a principle that was then violating that principle would feel like,
We weren't acting in Person X's interest, but we did misrepresent X's beliefs.
Goal
Look for an answer that establishes 1. not acting in Person X's interest 2. misrepresented Person X's beliefs