Who is "we"? The gini coeffient does measure income inequality similar to that. And yes, a feudal society would be more equal...
For example, a feudal society of, say, 50,000 peasant and a single lord, where each peasant makes 80 units of money, and the lord's tax cut is 10% (a common tax at the time, called a "tithe"), will have a gini coefficient of 0,09 (where 0 = full equality, and 1 = total inequality).
Who is "we"? The gini coeffient does measure income inequality similar to that. And yes, a feudal society would be more equal...
For example, a feudal society of, say, 50,000 peasant and a single lord, where each peasant makes 80 units of money, and the lord's tax cut is 10% (a common tax at the time, called a "tithe"), will have a gini coefficient of 0,09 (where 0 = full equality, and 1 = total inequality).