I afraid that TPP is more about geopolitic instead of trade.
Strong and rich countries benefits the most. While poor countries will always be (modern) slave. (of cource they wouldn't use this word because it is not nice).
What they need to do is support those politicians in poor countries indirectly (whether it is one party state or Democratic countries). Educate the people in control manner while controlling everything behind the scene.
On the other hand, also help those local to setup some NGOs to fight for human right, freedom of speech and enviro. This will keep those poor people busy with no direction.
Final point is it all depend on those poorer countries whether their politician and the people intelligence enough to play the game well.
I do believe the TPP structure will like this
(unofficial):
President: World Police aka USA
Deputy President: Rising Sun aka Japan and American sheriff in Asia Pacific aka Australia
Finance minister: Singapore
Not so important minister: NZ
The rest....