Well, yeah. I think that a well trained (far flung future) AGI could definitely do a better job of managing us humans than ourselves. We're just all too biased and want too many different things, too many ulterior motives, double speak, breaking election promises, etc.
But then we'd never give such an AGI the power to do what it needs to do. Just imagining an all-powerful machine telling the 1% that they'll actually have to pay taxes so that every single human can be allocated a house/food/water/etc for free.