Yah-- I get you.
My counterpoint is that even without people being aligned, we're far outperforming the past and what people hundreds of years ago thought we might do with increased privilege. Indeed, we even have less strife overall, even if we have many more axes of disagreement and fewer shared values.
That was what I was getting at in my previous post: having everyone at peak potential is great when everyone is aligned. If there is internal strife, peak potential just means bigger conflicts. Taken to the extreme, that means bigger wars and billions of dead people. Until we can figure out the coordination problem, human limitations are not the biggest problem IMO.