The Chinese immigrant workers provided cheap labor and did not use any of the government infrastructure (schools, hospitals, etc.) because the Chinese migrant population was predominantly made up of healthy male adults.
华人劳工提供了价格低廉的劳动，且不占用政府的任何基础设施（比如学校、医院等），因为华人移民的全部人口当中，健康的成年男性占据了绝大多数。