The misallocation of resources toward cryptocurrency and AI, neither of which are particularly useful in a utilitarian sense, leads us there again. "Out of money" is an abstraction of past waste of resources. "Economic downturn" is an abstraction of decreased efficiency in the labour market, AKA a failure of society to direct people to labour usefully.
Nobody making these decisions believes they are wrong, but the only check on it is that the economy implodes when they are in fact wrong.