The "Racketeer," by John Grisham; Character behavior

In the book the, "Racketeer," by John Grisham, the behavior of the protagonist, Malcolm Bannister, really stood out to be. Malcolm talked about he was just a normal guy before he was caught in a fishing net, and hauled to his prison. He was a family man, with a wife and a kid, just a innocent man making an income for his family. One thing did change though when he tried to swim through the net; his trust in the government because they were the ones fishing for them. When they sent Malcolm, along with the other fish, to an isolated life behind cast iron, he changed. He had to adapt, and he no longer trusted the government because they threw him into a plain cement mixed structure when he was innocent. Malcolm became independent, self-relying, cautious, and he adapted to life in a sardine can. When finally he jumped at the chance to get back in the water. Malcolm made a deal and he darted back into the ocean where he was free as can be, or so he thought. The government failed him again when they couldn't protect them. As of now, he only trusts himself, and no one else. He is out in the ocean alone, with plenty of water, but there are also plenty of sharks hunting for his blood. Do you agree with Malcolm changing his behavior to what it is now because he went to prison?