> Wow, Japan is generally known as being clean and corruption free.

Huh? This is the home of the keiretsu and the yakuza, you know. Corruption among the political elite is a standard assumption among the Japanese.

clean - yes, but corruption free? corruption is everywhere. if you have powers and decisions making you'll get corruption. look at lobbying in US - that's pretty much buying decisions. huge corps giving money to presidential candidates in US now - are there no strings attached and no further expectations?