Two big reasons.
OpenAI has more data, and more ability to tease secrets of politicians out of that data than nearly anyone on earth.
OpenAI has an automated hacking genie that governments want to use against their enemies.
Sam to Trump: "You know, some people have been saying they want to bring charges against me, but you know, I've got the best digital weapons and I'll give you access to them if those lawsuits go away".