Well, I think paperclip maximizers or 'kill all humans' skynet scenarios are extremely implausible.
From the examples we have, intelligence is anticorrelated with sadism and avarice.
Sure, but think about how humans drove others extinct. We never decided to "kill all wooly mammoths", we just wanted to use their meat / habitats for other things.
The correlation you mention seems noisy enough that I wouldn't want to bet my civilization on it.
Toby Ord wrote a book trying to estimate each of these risks, and put AI on top: https://www.amazon.ca/Precipice-Existential-Risk-Future-Huma...