Poverty is not the only metric we should care about when it comes to inequality. For instance there's also financial resilience, what percentage of people will be strongly affected if they suffer an adverse event i.e. a surprise medical bill or an appliance breaking. Another one is the distribution of wealth between people that spend most of their income vs income that is held in investment accounts or savings. Having sufficient spending is essential to a healthy economy.
A third, though this is much more an ideological standpoint and I don't expect everyone to agree with it, is the marginal value of money. If an increase in income has a greater marginal effect on the health/wellbeing/happiness of people who have less of it, isn't it better to prioritize growing their incomes rather than people who already have their entire hierarchy of needs met?
A third, though this is much more an ideological standpoint and I don't expect everyone to agree with it, is the marginal value of money. If an increase in income has a greater marginal effect on the health/wellbeing/happiness of people who have less of it, isn't it better to prioritize growing their incomes rather than people who already have their entire hierarchy of needs met?