I think that the "blank" is best filled by "equal".
This would mean that all people have the same power of decision in a democracy, and if it seems that some people have more than others: in fact they only represent the whole population.
In comparison, in a monarchy, the monarch has more power than the common people.
A. a poor farmer in Kansas
Populist movements usually target lower classes (or whatever group of people who are very numerous in the society), and promise improvement of their status, with ideas which are impossible to implement.
That would be a hydrocarbon society, I believe.
I think Neil Armstrong was very excited and happy when he stepped on the moon because who would’ve thought that how it paid all of his hard-worked and to be the one who first landed on the moon.