Imagine island economy of 21 guys. 20 humble plebs living there and one king. King starts with 90% of all coins on the island.

Bitcoin world with fixed amount of coins:

- a pleb produces a new good = value X is created.

- each coin on the island is now (1+X)/1 times more valuable relatively to before. (Other words, prices of goods got cheaper; deflation)

- if king wants the good, he pays his coin of value X for the good to the pleb. King then has 90% - X coins, and plebs have 10% + X coins.

- if the king doesn't produce any value, and buys out any amount of non-durable goods of not fixed value, he will be slowly shifting his wealth to the value producing plebs.

- true equality

Fiat world where king = central banker:

- pleb produces good, value X is created, everyone is (1+X)/1 richer (price deflation)

- king wants the good, so he prints the money of value X (zero real value produced, just a theft of everyone's 1/(1+X) value of their coins (including king's coins)

- if king started with 90% of all coins, he would end up debasing his own savings by 0.9X and plebs' savings by 0.1X for the sake of acquiring 1.0X.

- this is unfairness, and if extrapolated, the king who pays for his goods by printing money, ends up owning bigger and bigger share of coins.