The initial windfall can only be spent once. The important difference between distributed finance and traditional finance is that the former has no gatekeepers that provide their controllers with recurring economic rent. Both mining and staking are competitive industries that require productive activity by their participants.

A central bank can extract 2-10% of the money supply's worth of economic rent every year in perpetuity, and the beneficiaries of regulatory barriers to entry can extract similarly enormous amounts of economic rent on a recurring basis (e.g. the Big Three auditing firms have profit margins of up to 50%, thanks in large part to regulatory barriers to competing with them) and public choice theory tells us that this economic rent will be disproportionately distributed to the political and professional elite who control government budgets, manage banks, navigate the regulatory process, and most importantly of all, know the right people to pull the right strings.