Firstly the price of beans, CPUs and clothes may have fallen - but the price of education, healthcare, energy and especially housing have not fallen. They take up more and more of disposable income - and it's hard to argue that they are luxuries.

Second "when some people get a lot richer" this especially pushes up the cost of housing (arguably education too) a rationed good. The experience here in the UK is that more and more people are renting from those who have the money to corner the housing market. A vicious cycle of money being redistributed upwards.

No doubt type 1 and type 2 poverty are linked.