There is quite a bit of tension between the "superintelligent AI" and "following its programming" parts...
It sounds like there are three separate debates going on:
1. What is intelligence? What is rationality? What is a goal?
'Intelligence' is generally defined here as "an agent's ability to achieve goals in a wide range of environments" (without wasting resources). See What is intelligence?. That may not be sufficient for what we intuitively mean by 'human intelligence', but it's necessary, and it's the kind of intelligence relevant to worries about 'intelligence explosion', which are one of the two central organizing concerns of LessWrong. (The other...
A stub on a point that's come up recently.
If I owned a paperclip factory, and casually told my foreman to improve efficiency while I'm away, and he planned a takeover of the country, aiming to devote its entire economy to paperclip manufacturing (apart from the armament factories he needed to invade neighbouring countries and steal their iron mines)... then I'd conclude that my foreman was an idiot (or being wilfully idiotic). He obviously had no idea what I meant. And if he misunderstood me so egregiously, he's certainly not a threat: he's unlikely to reason his way out of a paper bag, let alone to any position of power.
If I owned a paperclip factory, and casually programmed my superintelligent AI to improve efficiency while I'm away, and it planned a takeover of the country... then I can't conclude that the AI is an idiot. It is following its programming. Unlike a human that behaved the same way, it probably knows exactly what I meant to program in. It just doesn't care: it follows its programming, not its knowledge about what its programming is "meant" to be (unless we've successfully programmed in "do what I mean", which is basically the whole of the challenge). We can't therefore conclude that it's incompetent, unable to understand human reasoning, or likely to fail.
We can't reason by analogy with humans. When AIs behave like idiot savants with respect to their motivations, we can't deduce that they're idiots.