The way this is issue is phrased is a good indicator of the point the writer intends to make. For example, people do not “receive” wealth, they earn it. Wealth is created, not handed out by the wealth fairy - despite government attempts to fill that role.
This is typically why so much is made of the gap between the rich and the poor: it is implied that the poor stay poor because the rich are taking more than their fair share. It’s like complaining that the bigger kids are gathering up all the Easter eggs and not leaving any for the little kids to have. This is simply not the case. The wealthy don’t get rich at the expense of the poor. In fact it is not at all clear that a growing gap between the wealthiest and the poorest is not a good thing because it may mean nothing more than that wealth is being created at a faster pace.
The bottom is fixed - the poor aren’t going to get much poorer (what would be bad is if the number of poor increased) but the top is open ended. Fifty years ago millionaires were considered wealthy and now we have billionaires. That represents enormous growth in the disparity between rich and poor but where is the argument that the poor are worse off now than before?
The gap between rich and poor is not a particularly relevant statistic, although it may well be useful propaganda.
Ender