Ah, my bad. The only reason the Convergence would try to dominate or control a planet would be to kill the life on it because they enacted war against them. Most Esurienti eat the creatures that inhabit a planet. And no, they do not distinguish every sentient being to be food like the other Hive Mind. They know the difference between a foraging and herding creature from a being that has power and intellect. Other Esurienti act like plants or crops, taking nutrients from the ground. They don't really care for items or resources and are actually not fond of extermination.