Hi Brainiac
Because they believed that feed slaves would be willing to take lower wages in order to get work in North.
Sorry for the late answer, but I hope its help:)
Answer:
Explanation: Tensions between South Korea and the North remained high after the Korean War, exacerbated by such incidents as the assassination attempt on Park Chung-Hee by North Korean commandos in 1968, the bombing in Rangoon in 1983, and the North's destruction by time bomb of a South Korean airliner over the Thai-Burmese border ...