How would it change if it was 1% instead of $1?
On only 5% of days was the spread greater than 80 -> 120.
When this percentage is in the range 2-10%, the wealth inequality is significantly smaller than in the base case (i.e. all payments are $1). Then it starts growing again.
[^1]: https://gist.github.com/lou1306/1041ed6cd4eed433cfabf45f666b...
What I did not track was the number of times a "person" became rich (for example, how many times a "person" had over 90% of the money) as that did not occur to me.