While this is true for the differences between upper-middle-class and middle-class and poverty which is a lets say 5 or 10 times difference in income, it is not true for the ultra wealthy who are in a completely different league and earn 1000 or 1million times as much.
While this is true for the differences between upper-middle-class and middle-class and poverty which is a lets say 5 or 10 times difference in income, it is not true for the ultra wealthy who are in a completely different league and earn 1000 or 1million times as much.
Discworld never got to the point of having billionaires.