His envisioned story is impossible. If you can hack ultron, why not use that skill to take over the world with your immense programming knowledge? Ultron isnt some windows eight computer; he's a super powerful artificially intelligent self aware ultra computer. Hacking him would be a waste of time because at that level of knowledge like i said, you could hack every single country in the world then beat them into submission.
If he wants to restrict creativity like that i'm not going to stick around.
Go ahead and take his last slot.