Why would you think that? I just can't see any basis for such an argument beside massively wishful guesswork...
"Of course, it's very possible that we're all wrong since we're projecting our own primitive reasoning on species that are a lot more evolved."
I completely agree with this though - you can't reasonably guess the consequences of future intelligence until you actually have it. Also, who said intelligence is on a single scale? There could be multiple types of advanced intelligence, each with their own chain of development.
"Of course, it's very possible that we're all wrong since we're projecting our own primitive reasoning on species that are a lot more evolved."
I completely agree with this though - you can't reasonably guess the consequences of future intelligence until you actually have it. Also, who said intelligence is on a single scale? There could be multiple types of advanced intelligence, each with their own chain of development.