A: Japan didn?t want anyone that wasn?t Japanese or Dutch in there cultur because of fear of losing power and corruption by bringing Christianity. Japan didn?t want the Europeans to change their way of life so they banned them from Japan. The merchants became rich off the rice because of the isolation. The outside influences affected the Japanese development by making them more advanced in trading and reading. It also affect the class order because now merchants were higher on the social scale then samurais.