Geothermal Energy

Why Japan won't change all the power source to geothermal energy? First of all, the government has the thing called "amakudari", which the people who used to work as politics gets to work at ordinary company. If they say something hard to the company, the whole party will have a hard time trying to work at the company. Which means they try hard to protect the company. they must stop doing this. Second of all it is a closed market. One company controls all of the electricity in Tokyo. They get to do whatever they want. They have the power not to change anything and they get all of the money. If the government tries to make it a open market, they will get pressured by the company. They only care about themselves. If Japan really wanted to help out the environment and the country, they would change it by now.