"Unchecked power" refers to a situation where someone or something has unlimited authority or control without any limitations, restrictions, or oversight to keep it in check. Full definition
All those who argue that lobbyists are the source of corruption are overlooking the role of government in accruing unchecked powers of favoritism. (firstthings.com)
On Wednesday Doyle said his organization «supports the principles in the bill,» while reiterating the report's two main themes: proxy advisors have emerged as quasi-regulators with unchecked powers, and these firms are not neutral arbiters of good governance but rather «very much for - profit enterprises.» (business.financialpost.com)
«In «Detroit,» as guests are bloodied in a hotel hallway lineup, there's no such counterbalance, creating a prolonged exercise in unchecked power. (sfgate.com)