Most gravely affected people are the ones already suffering by tsunami. Attention was diverted to this hopeless mismanagement. The reputation of Japan will remain the same: people with contempt rooted before the accident will see this incident as their contempt vindicated. Others will see this incident more objectively.
The corruptions between major industries and government is more well know in US because their resource rich energy sectors are much more influential in domestic and global stages. This shadowy collaboration has managed to evade serious criticisms in Japan up to now. No one was really surprised by the incompetence of the Tokyo electric company after series of mismanagements preceding this self-inflicted catastrophe. But we were just astounded by their magnitude of their incompetence.
Link of news about Fukushima.