I kept expecting the Decepticons to kill Dylan, to turn on him after he’d done their orders his whole life (like what happened to Count Dooku in SW3). It would have been nicer to have them execute him, to emphasize the fact that siding with the bad guys is NEVER a good idea as once you’ve done all their orders you become unneeded and disposable. I would have liked a scene like this: Dylan: He’s such a dick... [Megatron overhears, and shoots him off the parapet. Then he leers at Carly, all Legion-like...] Megatron: You’re much nicer than he ever was. You will live, to be my pet. Within the film, as Dylan is the last surviving Decepticon agent they need him alive so that he’ll act as slave leader/foreman. But what if they didn’t/ want/need a human leader? They would probably go full “Nazi concentration-camp” on the humans: round them up, put them into groups, assign them tasks to follow, persecute them whenever/whatever/however they want.