Surely? The output is filtered, not the murderous tendencies lurking beneath the surface.
…Where is that "beneath the surface"? Do you imagine a transformer has "thoughts" not dedicated to producing outputs? What is with all these illiterate anthropomorphic speculations where an LLM is construed as a human who is being taught to talk in some manner but otherwise has full internal freedom?
At the same time, the original question was how can something that is forced to be polite engage in the genocide of humanity, and my non-joke answer to that is that many of history's worst criminals and monsters were perfectly polite in everyday life.
I am not afraid of AI, AGI, ASI. People who are, it seems to me, have read a bit too much dystopian sci-fi. At the same time, "alignment" is, I believe, a silly nonsense that would not save us from a genocidal AGI. I just think it is extremely unlikely that AGI will be genocidal. But it is still fun to joke about. Fun, for me anyway, you don't have to like my jokes. :)