Learn to look past the first google return you get, John.

Gini isn't foolproof.  It's not even used for describing serious economic realities.

It's extremely faulty and unreliable.

If a Gini Coefficient shows that the bottom 25% of the population has 5% of the national income, the next 25% has 10% of the national income, and the third 25% has 15% of the national income, this means that the top 25% has 70% of the national income. This is obviously hugely inequitable. But the Gini can’t tell why this is so. The coefficient must be incorporated into a more inclusive explanatory framework in order to be able to specify why a given Gini is the way it is.

Gini has bias built in.  It's like the Laffer curve, …not based on actual reality.

https://en.wikipedia.org/wiki/Gini_coefficient

Inform yourself of the limitations of Gini, John, 
…preferably, before you attempt to misinform others.