The topic was "Civilian control [of, presumably, the military]". The root comment seemed comfortable with the idea that individuals can go rogue if they have access to a large number of machines that unquestioningly obey them. I'm not sure why you think society being organised democratically makes that suddenly a non-issue again, and if you believe that then why did you suggest this topic in the first place?
Military generals are just people and power reliably corrupts. There is a bit of a screen to try and pick emotionally stable and patriotic ones - and I assume that generally works - but the big control is that fact that all the people reporting to them are voters. If the people reporting to them are from a smaller pool of voters and vastly more productive with machine aid, there is room to speculate that control will be less effective or maybe even fail.