6 months is an incredible amount of time to control AGI or ASI by yourself. That lead is insurmountable.
What could you do if you had roughly 15 million willing genius adult experts in any given subject? I doubt there are that many absolutely top quality experts in aggregate (at anything in the world), so let's postulate that simulated people outnumber human experts 10 to 1.
That, to me, presents an enormous potential for harm or benefit of humanity. What if you could create a hundred thousand manhattan projects on whatever topics you wanted? Cure aging, cure cancer, solve fusion, redesign the entire global economy top to bottom?
But yeah, your point stands.