And do you also know why this is the case?

Because Monopoly originally was two games. One that basically works like Monopoly, with the outcome described in the the post, and another one, the "anti-monopolist" version was based on the concept of just paying tax for the land you own, which makes it more expensive for one person to own a lot of the board. This version never ended.

Elisabeth Magie created the game (called "The Landlord's Game") with these two rule sets to teach people about Georgism, which is a system in which tax is only raised on the land you own. It should show people that a system leading to monopoles is bad, and Georgism is good.

Then the Parker Brothers bought the rights to the game from someone who didn't own them, dropped the Georgism version and sold it with a rich, fat, old, white man on the covers who swims in money and is super happy, which kinda teaches exactly the opposite that Elisabeth Magie intended.

Then they used their position in the market to crowd out all the other versions of that game.

A truely American story, once the Parker Brothers entered the game -.-