The world will evolve with the development of AI; I'm not so concerned with limitations of current safeguards.
The world did evolve with the development of nuclear weapon, but between 1945 and 1949 US was the sole nuclear power and could preemptively attack USSR as John von Neumann proposed. That's 4 years! I suspect such window will recur with AI.
The kinds of things I'm thinking about are the various countries nuclear arsenals might not be safe from actors with very advanced AI. This I think is the potential source of existential risk, in my opinion. So it could hurt a hell of a lot.
So I'm of the responsible disclosure point of view. You ask "Would releasing AI advancement X mess up someones security/economy". If so, you help them patch it before releasing it to the general public.
The majority of advancements aren't like that and they won't be for a while.