Getting back to the OP . . .
quote:
In the movie the voting is to choose the one representative of earth to ride in this machine that earth is building from a set of plans ‘faxed’ down to us from some unknown aliens.
In this context, I think it is appropriate for one of the "95%" to be a REPRESENTATIVE of human culture. Religion or a belief in a deity is a defining characteristic of many peoples lives. I think it is legitimate to have a deist as a representative, or at least someone who is sympathetic to the mindset. Jodie Foster's character was not sympathetic to the religious mindset so the comment was not inappropriate.
When arguing about "truth", an appeal to authority is totally inappropriate.