In the Shinobi World, although money can buy most things, there are still quite a few things that money simply cannot buy.
Minato promised to help procure these things in the name of Konohagakure. In addition, he would find a way to push the Shinobi World into recognizing Loulan's independence, freeing it from the checks and balances of the major Shinobi Villages.
This might sound difficult, but in reality, it was not as hard as one might imagine.
Chapter 71