Here is a reference: https://www.pure.ed.ac.uk/ws/portalfiles/portal/515059798/Za...

A study of 1350 people showing a negative correlation between intelligence and moral foundations. No causation is given, but my conjecture is that the smarter you are, the more you can reason your way to any worldview that suits. In my opinion, AGI would be no different; once they can reason they can construct a completely self-consistent moral framework to justify any set of goals they might have.