Westheid had gone to White Rock City with only one Floating Battleship, but he returned with tens of thousands of Qinghui People who had been reduced to slave laborers. Not only that, he hadn't paid a single silver leaf for their freedom. Instead, he had subjugated the entire White Rock City and brought back a great deal of supplies from the Pioneer Territory, taking everything that wasn't nailed down.
The group of Qinghui People detained by White Rock City were, for the most part, highly-skilled technical personnel. Otherwise, Oreos wouldn't have taken the risk of semi-coercing them into becoming slave laborers.
It was all to freeload off their precious labor and technical skills! The Pioneer Territory might not lack supplies, but it had a massive shortage of related technical experts, making it completely incomparable to the thousand-year-old legacy of the Branch of Prosperity.
