Why a self-aware Artificial Intelligence could only be benevolent

With all the fuss about Google's LaMDA and whether it is self-aware or not, debates and fantasies over AI reaching self-awareness have resurged everywhere. We've all seen the movies and read the sci-fi novels of dystopian futures where an AI either enslaves humanity or proactively tries to get rid of it. Terminator, The Matrix, Transcendence,… But what if all of these fantasies were completely wrong? What if an AI could only be benevolent towards humanity? One of the core assumptions behind most of the dystopian AI stories is that such an AI is something that exists outside of us, a being which views itself as separate from humanity, looking at humans the way humans observe a bunch of cockroaches scurrying around, and thus capable of the same cruel treatments that we are capable of, like spraying them with a bunch of toxic insecticides to get rid of these pests.