There is a Rich Man and a Poor Man.
The Rich Man makes $1,000 per day. The poor man makes $10 per day.
The difference in their income is $990 per day.
The Rich Man builds a factory. He gives the poor man a job there. Now the poor man makes $100 per day instead of $10 per day.
The difference in their income is now almost doubled: $1,900 per day.
A Politician decides income inequality must be fixed.
He taxes the Rich Man and gives it to the Poor Man. Now the Rich Man cannot afford to run the factory. The Poor Man loses his job.
The Politician gains votes for having closed the income gap.