In 2012 the mayor of Osaka, Toru Hashimoto, came out "full blast" with a policy that outlawed tattoos -- in the Osaka government at least. Specifically, he ordered a stop to city employees getting inked.
The Country Manager of a foreign company starting up in Japan is more than just a manager, he/she also has to be an entrepreneur and salesperson to run the minutiae of a new business for the first 3-5 years.
A newer global self-help entrepreneurial business organization, TiE, has appeared on the Japan scene, and this one seeks specifically to develop new entrepreneurs, although the networking aspect is there as well.
Instead changing the Constitution and the U.N. Security Council an interim solution could be to employ private military companies, working on the behalf of the Japanese government to get "sticky" stuff done.