"on the dole where it all gets paid! how is that justified when they have never worked"
Don't tar all with the same brush. You infer that those on the dole have never worked. That is not true. The vast majority have lost their work through redundancy, short term contracts and closure of firms. These have paid their taxes for years, like you and me and need a bit of help to get them back on their feet. A small amount are truly disabled and unable to work.
There is a tiny minority who refuse to work and milk the system.
There is also a lot of unscrupulous landlords who work the system for all it's worth.
There is also criminal gangs who scam councils for vast amounts of housing benefit.
There are a very few council tenants in London who sub let council/housing association properties for vast weekly rents while they pay the minimum.
So as in most cases, a few blacken the names of the rest.