In the eyes of the upper echelons of every nation, the so-called "One Shinobi World" plan was merely a deal the Land of Fire used to profit. The Land of Fire would invest in construction and receive the profits for the next twenty years, while the other nations would gain the economic benefits brought by maglev trains. Each side got what it needed.
Although the Land of Fire would certainly earn enormous profits over those twenty years, the other nations did not care. Governments were not merchants; they considered politics more than business. As long as they could keep pace with the Land of Fire's national development and maintain the balance of the shinobi world, that was enough.
Thus, in the eyes of the various nations, this plan was fairly equitable. If Konoha developed other chakra technologies in the future, they would not mind continuing their cooperation in a similar manner.
Furthermore, considering Konoha's limited number of shinobi, it was impossible for it to build railways for every nation at the same time, so there would inevitably be an order to the construction.
The benefits of maglev trains were obvious to all. Falling even one step behind would be a tremendous loss for any nation, so the upper echelons of every country did not bother consulting one another. They immediately ordered their foreign ministries to submit applications to the Land of Fire, hoping to reach a deal before anyone else.
Allies from not long ago immediately became competitors. The secret alliance formed because of the Land of Fire fell apart because of a single move by the Land of Fire. Such were the complex yet simple relations between nations—there was nothing but interests.
It was precisely because Nawaki had seen through the behavioral patterns of the upper echelons of each