Monopoly with a real distribution of wealth and income
Simple idea:
Play Monopoly (or Life) with an initial distribution of wealth and income that matches the one prevailing in your society.
The flow:
Prepare the game. Joker gives participants a Monopoly set and a source like Wealth Inequality in America (https://www.youtube.com/watch?v=QPKKQnijnsM) or G William Domhoff's "Wealth, Income and Power" (http://www2.ucsc.edu/whorulesamerica/power/wealth.html) and asks participants to divide the property and cash among the players in a way that mirrors the actual division of income and wealth in the United States.