The Motie was particularly interested in the various forms of human government.
What more natural than that we should insinuate our way into control of the human government?
In the episode the human government is "the Empire".
"Perhaps this young man understands more about us than other human governments do."
The dominant civilization decides the form of human government, and these will not be constant.
They might even have used me to communicate with the human governments.
The new space drive technology is used by the group as a bargaining chip in their dealings with the human government.
I am still part of the human government that has tried to hold things together.
This means that God is the most powerful, above human governments.
But maintaining our connections with the human government is still essential.