No, this is meaningless. Of course AIs, just like humans, will go rogue and probably already do. "Rogue" is a pattern that appears in human communication and behaviour and AIs can emulate it.
But that doesn't make any particular AI controlled process all-powerful. Self improvement doesn't do that either. There will be many self improving AI processes playing many different roles pursuing many different goals.
But that doesn't make any particular AI controlled process all-powerful. Self improvement doesn't do that either. There will be many self improving AI processes playing many different roles pursuing many different goals.