??????????????????????????? I simply fail to see your point. Monopoly is not an RPG. Using the absurd to prove your point is lost to me. Could you please clarify?
You can play Monopoly as a role playing game, where you are playing sentient incarnations of the tokens, and they can have rivalries, duels to the death, and character arcs.
The mechanics of Monopoly provide
zero support for this. But the mechanics don't stop you from doing it.
When you have decisions to make, you can use your character's motivations to determine which choice you make, within the framework of the game. These are quite limited (do you bribe your way out of jail? Do you build houses? Do you buy or bid on a property?) mechanically.
It can help if the banker roleplays as the jail guard.
This is (a) funny, and (b) makes it clear that the "there are no rules for it, but you are allowed to do it" position actually has an issue.
Monopoly is a pretty crappy roleplaying game, because the rules of the game are really not suited for it. I mean, you can have
fun roleplaying in it, but most of the fun is the self-referential absurdity of roleplaying while playing Monopoly.
Having mechanical support for something tends to actually encourage and support it happening, and can make the experience of doing it more fun. And yes, without support, you can still do it, but at some level you are basically roleplaying monopoly tokens: a top-hat made of rags to a top-hat made of mercury felted beaver pelts story.