There are two classes of people who aren't living in this world: the poor and MPs.
If your earning capability is limited to minimum wage jobs, then you are also dependent on the state to pay you various benefits so you can have a decent standard of living. If you work harder or get a better paying job, your benefits are reduced almost £ for £. So what do you do? You have more kids, or a couple splits up. See here: http://www.dwp.gov.uk/mediacentre/pressreleases/2008/sep/TaxBenefitModel-apr08pdf.pdf
If you are an MP, your work provides a certain level of pay, but if you want more money you have to change your living arrangements, employ your children, buy things you can claim for that you can sell later and keep the money.
If our masters get the idea of living on an income that depends on the non-work choices you make, you can see why they have no problem making their clients live the same way.