영화는 외화벌이가 중요했던 당시 북한 정권에서 그를 대외사업 적임자로 판단해 숙청하지 않았을 거라는 설을 차용했다.
The movie borrowed a theory that the North Korean regime, which put importance on foreign currency earnings, did not purge him because they judged him to be a well-qualified person for foreign business.