I am sure there were others involved with the Enron mess. He could have testified against them in court, to see that they are punished. As you said. he had $30M, and could have retired and lived like a King in a third world country like Mexico.

The fact that they are not releasing the contents of his suicide note, or even verify that it is in his handwriting, and they haven't released the results of the autopsy, tell me that this is a coverup and they went to the media to help cover it up. We are being spoonfed lies here, I suspect.