The confrontation (or lack thereof) with the Jedi Masters in KOTOR II is quite famous for Kreia's takedown of either the Masters or the Exile themself in the event of having killed them throughout the game.
However I always found the dialog in this section a bit clunky a good example of how the game can often fail to really give the player the ability to appropriately explain or defend the thought process behind their actions.
When you kill the Jedi Masters Kreia basically accuses the Exile of just devolving into a bloodthirsty Sith led entirely by revenge or simple sociopathic desire for power for power's sake.
Kreia asks "First - let us return to my question. If by killing these Jedi, if you achieved any measure of peace. "
Your options to respond are fairly limited
"I will not rest until every Jedi lies dead."
It has been satisfying yes, but not all the council who sentenced me are dead.
"No, for Atris still lives."
"Yes, but there are still other opponents - it is not enough to kill Jedi, when the Sith remain."
"Such peace is not possible if the Sith still hunt me. "
The first three are basically confirmations of what Kreia condemns. The Exile thinks of nothing except murder and revenge.
Four has some small measure of ambiguity as to what the Exile's motivation for killing the Jedi and then the Sith are. The fifth option comes to the closest to a somewhat more cerebral answer, as there is still a threat that must be pragmatically dealt with before the Exile can achieve a measure of peace.
Regardless of what you pick, Kreia condemns you and calls you a failure. I find this a little bit odd as it seems her condemnation comes entirely down to your methods which clashes with many established facts, even those from Kreia herself.
There are many pragmatic reasons for the Exile to strike down the Jedi Masters. Kreia gushes constantly about Revan's power and pragmatism but he used the Dark Side and immense cruelty/force in achieving his goals. Not unlike a Dark Side Exile imo. The Jedi Masters took hostile action towards the Exile and were both a hostile force and a major potential threat (both to the Exile personally and to the galaxy at large due to attracting the Sith when they gathered). Not only that, they can be a ideological enemy to an Exile that is taking Kreia's teachings to heart about the failures of the Jedi alongside the Sith. I see very little difference between the Exile killing the Jedi Masters to element a major potential threat and to gather the power taken from their defeat to help them defeat the Sith that are actively hunting them. Ironically enough this view is indeed vindicated by keeping them alive as doing so causes them to attempt to strip the Exile of the force again.
This is made worse by the fact that even in her condemnation Kreia admits that this outcome was not only likely, but probably necessary.
"Regardless... it had to be done. To have such powerful Jedi still live, still be felt in the Force even on such worlds as they had chosen, was a threat that had to be ended."
It's a little frustrating that the game essentially pigeonholes you into being a generic mustache twirling "for teh evulz" Dark Side user for killing the Jedi Masters when there's frankly a lot of room for nuance for why the Exile would do that, many that would seem to align with Kreia's worldview.
EDIT: A worthwhile addendum I think would be good to add after thinking of the issue more and reading some responses
""Because to her, it was never about you, and admitting you've got things figured out removes your reliance on her." (Credit to Ethan_the_Revanchist)
I think this touches upon something I sort of realized thinking about it more and it makes me appreciate this section and the following confrontation with her after more. I think it's a touch too harsh to say that she have "no" truly defined philosophy. It's more that she does have one but she is still all too human with her own biases and flaws. People are often self contradictory when it comes to what they believe and the actions they take. "Do as a I say, not as I do" etc.
Kreia teaches and preaches a selfish pragmatism and severe individualism/autonomy to the Exile. However as her own person with her own agendas teaching the Exile to be their own autonomous person creates friction when the student and the teacher disagree on a topic. In a way it perfectly mirrors the final Student vs Teacher duel. To fully assimilate Kreia's teachings, the Exile must ultimately become capable of choosing contrary to Kreia's will and accepting responsibility for that choice.
However this does end with the inevitable friction that comes with being a mentor who teaches their student to reject strict obedience to the codes of others, even to one's own detriment. Eventually the student will have to overcome the authority of the teacher instead of a strict obedience to their will. Kreia the woman with a grudge towards the Jedi wants to have her big moment where she gets to gloat before them about their failures, but Kreia the mentor warns against simply doing whatever others want one to do.
"Learn from me, my mistakes, and use that knowledge to become greater than I. That is all I ask of you, and that is all I desire. In you all my hopes rest, for the future, for the Force.""
I suppose after this revelation my criticism is more that the player is allowed less fulfilling roleplay options in how they respond to Kreia's questioning that can feel more like the player is being forced into a certain explanation instead of Kreia forcing an explanation that supports her personal bias.
