I also think including this in the discussion will, perhaps, emphasize the nuance of what I believe you're indirectly referencing -- the economics of how humans choose to spend their time (sometimes referred to as the "Attention Economy").
I believe literally optimizing for something such as GDP fails to take into account freedom / liberty which is likely something most on this website would agree is incredibly valuable in a society.
I think the difficulty is in creating a consensus around what is acceptable relative to the "Attention Economy". It might even be impossible given that this seems almost indistinguishable from culture -- and there will likely never be a single unified culture if and until something as paradigm-shifting as a multi-planetary species is realized.