The intense but short interaction revealed many details.
The evolved soldiers' hierarchy and privileges had become evident. Adrian and Bruno were one step above Miss Christen, with Bruno in charge. Also, the two didn't appear bound and subservient to the noble authority. They could act on their own as long as they abided by their role.
Adrian and Bruno's powers also felt one level above Miss Christen's. They were probably older, more experienced, and had completed the evolution through better paths. Their characters even seemed to match their elements and vibe instead of merely playing along with it.
The evolved soldiers' surprise at the revelation of Khan's current level also told him he was doing something right. The toxic pool was working. He was getting closer and closer to that superior realm, but something was still lacking.