The point is that people work their asses off to support a family with £20k, which is a reasonable wage in the UK. These slobs get more than that for being fat and claiming it as an illness.
22k is more than a private in the British army earns, he would have to work hard for 4 years and get promoted to Lance corporal in order to get paid more than that family.
http://www.navycs.com/uk/2011-british-military-pay.html