"It is left undefined because they don't want it set in stone that you are causing mass genocide. "This only makes sense if the administrators are the only people who live along the equator, with the bulk of of the population concentrated at the poles, safe from the reach of orbital bombardment.
End of quote
Right! The administrators are in harm's way! In reality, they'd probably put children up on the rooftops for use as human shields while taking shelter in palatial underground bunkers.
When I play this game I like to think of myself as the evil Darth Sidious, the Emperor in Star Wars. That's more akin to who you are as the commander of your forces in this game. (Sorry, I don't think the Rebel Alliance would commit planetary genocide even against slimey alien Vasari civilians; we are all Sith Lords in this one.)