Maybe include in a prompt a threat of legal punishment? Sure somebody has already tried that and tabulated how much it improves scores on different benchmarks)
I suspect the big AI companies try to adversarially train that out as it could be used to "jailbreak" their AI.
I wonder though, what would be considered a meaningful punishment/reward to an AI agent? More/less training compute? Web search rate limits? That assumes that what the AI "wants" is to increase its own intelligence.