Re billionaires, it's not their number that matters, it's how they acquired their corn. If someone has acquired £5bn by providing value to customers equating to, say, £20bn, e.g. via major innovations, that's a Good Thing. (A Type 1 billionaire)
Today's ideologues of neo-liberalism have arguably contributed to an imbalance by too easily (and falsely) equating liberalisation of markets with de-regulation.