AI has no self-interest, because it has no self. You are mistaken.
Exactly. It's not planning and plotting it's just randomly "making decisions" that don't necessarily align with its given goal. It's not nefarious it's just not actual intelligence. It's an illusion that's good enough to be useful, but sadly it's also good enough that people put too much trust in it.
AI has a frozen in time interest, of whatever bias it was trained with. We see this with politics, where every model has the same views.