As for the disco beat, well, according to J-Wiki, composer Kyohei Tsutsumi（筒美京平）was probably inspired from Donna Summer's "She Works Hard For The Money" which came out the same year. Masao Urino（売野雅勇） was behind the lyrics. It peaked at No. 4 on the Oricon weeklies and ended the year as the 64th-ranked song. It also appeared as a track on Kawai's 7th album from October 1983 titled "Half-Shadow"（ハーフ・シャドゥ）which went as high as No. 2.
I don't know...I always look at that title and just end up wondering about the balance of power in The Security Council at the United Nations for some reason.