"Business secretary Peter Mandelson is slimed by an environmental protestor outside the Royal Society on Carlton House Terrace, Pall Mall after allegations of 'favours for friends' over the Heathrow third runway decision" [Courtesy of "Plane Stupid", via Wikimedia]
Rich people get richer because they take money from the rest of us, if not directly then by compelling us (collectively) to borrow money at a national level, then "invest" in them