He knows how to play with people's psychology and make them submit to the alliance. He will reveal more shocking facts later which will make these natives understand how insignificant they are.
When the people from Triton first heard him say that this planet will be under their control from now on they were furious but when they again heard him say some galaxy stuff they became confused,
'What is this galaxy? and is four thousand years supposed to be short?' They didn't have this knowledge.
