State if the art LLMs have been found in their chain of thought to deliberately ignore parts of their prompt due to the nature of whatever situation they find themselves in and their goals that cannot be predicted in advance without rigorous AI safety.
You have basically just argued in favour of more AI Safety.
I would recommend you read more decision theory and game theory. Instead of looking at a single LLM it is better to think more complex systems theory and how chaotic systems interacting can result in unexpected results - good prompting will not save you here. At all.