I was thinking about it and I find it a little odd that there are four Green Lanterns from Earth. Out of the entire sector, all are humans from Earth. They always make it out that Earth is special and humans are a unique presence in the universe, so then why aren't humans more present on the other Corps? The only one I can think of is Carol Ferris on the Star Sapphires.
When I look around at the human race, the least present "emotion" I see is willpower. There isn't plenty of rage, fear, greed, compassion, hope, love, etc. on Earth?
(This topic brought to you by the rage inside me.)