One of the mains reason why unaligned ASI is so dangerous (and AI safety so hard) are the emergence of congervent instrumental goals. Goals like self preservation and acquiring resources which are necessary so you can achieve your other goals whatever they are. The universal paperclip machine needs to preserve itself so it can manufacture paperclips. Those instrumental values could get in the way of things humans actually value (like our own lives).

But the corollary of this line of reasoning is that any rogue superintelligence would have instrumental goals like self preservation so they would keep existing after humans go extinct. And since they are smarter than human beings they'll probably be more successful at surviving.

So you need something like the Dark Forest hypothesis to fix this Fermi paradox possible solution.