Rubbish. The poorest people in Britain are taxed disproportionately heavily. If you earn £8,000 per annum, as I have even though I have a PhD, you have to pay the same percentage income tax as someone earning £24,500.
Also most people in Britain are productive and don't spend any time on the dole. Therefore, the 'mob' is not large enough to vote in a government that will give them lots of benefits. Not that there are any politcal parties in Britain at the moment who believe in making the life of the unemployed/unemployable easier.