£47,000 is the wage of a teacher near/at the top of the main scale. In this day and age, this wage is barely enough (with austere saving) to save for a house. To suggest that such people are 'rich' displays a level of ineptitude that should be the death knell of the government.
£3,170 is the monthly take home for someone earning £47,000.
Basically £100 a day to cover rent/mortgage, commuting, food, energy, insurance etc, and apparently you're 'rich' and should be taxed more.
I can't believe they're going to do this.