So the Role of Government used to be to Establish Order. That's something the Romans and the Chinese could agree on.
The the English parliament stumbled itself into winning the English Civil War. So they decided the role of government was the Protection of Property. Not a bad idea, all things considered.
Now though we know a bit more about how society works. Let's say we become worthy and assume power. What's the role of government now?
Let me propose: to break malignant signaling spirals.