I believe those who deploy the machines should be responsible in the first place. The corporations who make/sell those machines should be accountable if they deceptively and intentionally program those machines to act maliciously or in somebody else’s interest.

I generally agree.

Imagine however, that a machine objectively makes the better decisions than any person. Should we then still trust the humans decision just to have someone who is accountable?

What is the worth of having someone who is accountable anyway? Isn’t accountability just an incentive for humans to not just fuck things up? It’s also nice for pointing fingers if things go bad - but is there actually any value in that?

Additionally: there is always a person who either made the machine or deployed the machine. IMO the people who deploy a machine and decide that this machine will now be making decisions should be accountable for those actions.