I think it's very interesting so many people in this comment thread are so quick to point out that 20k is a fair, or even good, price for writing the end poem, but don't engage with the fact that $1800000k might be an excessive amount for one person to earn for making a video game.
The multiples and orders of magnitude of difference in the payouts are what make the decisions that the various people make interesting and complicated. The author did what he needed to do to make you feel those orders of magnitude in difference.
Also it is very funny to think that somebody who has 1.8 billion dollars is not greedy. I don't think that is impugning their character to point out something obvious.
Well first of all it seems like (a) the author of the poem didn't explicitly agree to sell it at the price and (b) people are often willing to pay unfair prices for things in times of duress (IE... how much would you pay for a bottle of water if you were dying of thirst?).
And either way, the author isn't making a legal or moral argument one way or the other. He's just telling a story about his emotional response to this complicated and unique situation. The fact that the people on the other side of the story effectively have infinite wealth and still made the decisions they did is important to the story! It makes it easier for us to understand their motivations. He's a writer who wrote a story, it's not a wikipedia entry.
The multiples and orders of magnitude of difference in the payouts are what make the decisions that the various people make interesting and complicated. The author did what he needed to do to make you feel those orders of magnitude in difference.
Also it is very funny to think that somebody who has 1.8 billion dollars is not greedy. I don't think that is impugning their character to point out something obvious.