It's an inequality coefficient, not any kind of measure of how "nice" a country is for someone living there.
Countries with a high Gini, tend to segregate more heavily than those who don't, which for the typical 'rich' software developer means that they'll live in a trendy area and know to avoid the 'ghetto'.
For example, Miami has a high gini at ~0.6 to 0.7 which gives you the palaces overlooking shacks effect of Miami Beach.
High gini also correlates with extreme economic growth, where the benefits fall onto a small group (e.g. software developers), and a reversion to the mean hasn't yet taken place.
