Knowledge is utterly priceless in the dark forest of the universe. Did humanity honestly think they could obtain it so easily? Impossible!
Black was not a professional scientist by its species' standards, and its digital "core memory" only contained a handful of technical papers. It certainly wasn't going to hand them over without extracting maximum value.
Moreover, those few papers alone weren't nearly enough to propel a primitive civilization all the way to a true Interstellar Empire. If achieving interstellar ascension were that easy, the entire universe would have been bustling with advanced life long ago!
