You missed the point, which was basically "how are these people paying for gas with these jobs" and "where the hell would they get gas, anyways"

But on another front, I think you're looking in the wrong direction with the whole 3rd-world analogy. This is colonization, not exploitation; you end up with something like the Brits in America or Australia, not the wild west.
That would come later in the expansion, if it came at all. And spaceships would have no reason to visit it. They would visit the initial colonies, where material was shipped out, rather than visit the proles, who would only get uppity if they had direct contact with the outside universe.