The whole point of the second issue of Hulk vs. Wolverine is the chicken vs. the egg question. Does Bruce turn into the Hulk, or does the Hulk turn into Bruce? And Bruce can now maintain his intellect while transformed. I think that it shows that the two minds aren't as separate as everyone else wants to believe.
I mean, what would you expect a person in his situation to be like? "Yup, I killed 'em. Ate some of 'em. It was fun too." They wouldn't have even needed a trial or somesuch, it would have been a simple matter to publicly execute him immediately after the Manhattan Incident. Instead, by expressing remorse and being given therapy, it bought him time to work on Hank Pym. Hank then misdosed him or something to that effect, allowing him to escape and be free in the world again.
Just because a psychopath is incapable of FEELING remorse does not mean they are incapable of EXPRESSING remorse.