I've seen/heard many comments about how Gene Roddenberry used Star Trek to promote a utopian vision of the future, where humanity is morally good, in general (conflict is typically provided by other races).
However, Gene Roddenberry's Earth: Final Conflict is based on his stories and it is much more dystopian - although the aliens are responsible for much of the conflict in the show, there are many human characters who act against other humans, are power-hungry, and so on.
Is there any explanation for the disparity here? Rather than speculation, references to interviews (given the timing, probably with others) or other material would be ideal.
I'm wondering if the difference is due to the series being filmed after he died (perhaps the stories on which it is based put humanity in a better light?), and come more from Majel Barrett, or if his hope for humanity's future faded towards the end of his life. Did he feel that Star Trek covered the utopian view, and he wanted to explore a different possible future?