It's one hell of a problem.
I agree it's a problem but it isn't incumbent on the 'x' peers to solve it. The burden of that goes to any supposed '10x'.
Long version:
I agree with you, though I would add that a superintellect at '10x' that couldn't look at the 'x' baseline of those around it and navigate that in an effective way (in other words, couldn't organize its thoughts and present them in a safe or good seeming way), is just plain not going to ever function at a '10x' level sustainably in an ecosystem full of normal 'x' peers.
I think the whole point of Stranger in a Strange Land is about this. The Martian is (generally) not only completely ascendant, he's also incredibly effective at leveraging his ascendancy. Repeatedly, characters who find him abhorrent at a distance chill out as they begin to grok him.
The reality is that this is an ecosystem of normal 'x' peers and the '10x', as the abnormality, needs to have "functional and effective in an ecosystem of 'x' peers" as part of its core skill set, or else none of us (not even the '10x' itself) can never recognize or utilize its supposed '10x' capacity.
For reference, I think most of us are '10x' in a particular field and that is our talent. Society-in-scarcity rewards talents unequally so we get status and ego resulting in a host of dark patterns. I think AI can ease scarcity so I keep betting on this horse for solving the real problem, which is ego.