No, matrix operations are no different than any of the mathematically modelable processes happening in a plant.

if anything LLM-like ever becomes a moral patient, having habits of doing this is straightforwardly bad. even if this doesn't happen, these habits could come out in interactions with people

people do things to plants that could be constituted as physical harm all the time, like harvesting vegetables, there is nothing wrong with doing this and it is ethically good if you gain something from it. (my name is a lie)

A tentative yes, because abuse might somehow be used as training data for the LLM and negatively affect its utility. And it’s possibly worse for the human’s mental health and morality to abuse something that sounds human.