Zhu Wencong is playing a grand game in the South Seas to ensure he can split the wealth of the South Seas with Westerners, which is the worst outcome.
Western capital profits the most not in the East, but in the South Seas. That place can be considered the backyard of the foreigners.
The countries in the South Seas once were tributary states of the East, but now they have become models of the West, with language and culture gradually westernized.
To break this situation, one needs to plan ahead, taking advantage of the fact that Westerners haven't established a strong foothold in the South Seas, and Easterners have to ally with the local natives.
As long as those natives are given a glimmer of hope, they won't be lured away by the foreigners, and the South Seas won't be a place where foreigners have the final say.