The "little people" do not all work the same way even if they do have the exact same job. They take more naps when their energy is low, they eat (snack) more when they're hungry....etc.,etc. There is a randomness in this game and all the VV games too that you simply cannot break down into a cut and dried concept of equality.
Since the promotion happened while you were away it's impossible for you to know how much work was done and who did it.
And honestly.......do you really think that someone that would take such care to give us such an incredibly loving game as this one is (from the emails to the pets to the waves from our wee ones) would ever, ever have a male character make more than a female character for the same work?
Sorry....I have much more faith in Arthur to believe that. Personally, I would much rather have them with random quirks that truly seem to make them more human than a blah pixel character.
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**If you ever want to see a rainbow, you've got to stand a little rain.**