. I would argue that the ethics of the economy have improved,
The Reagan era was a glorification of greed. Before then, CEOs were expected to care about all the stakeholders of a company. Not just stockholders but also customers and employees and the general community. A large amount of enshitification resulted from the glorification of greed era. For example, tuition at public universities went from very reasonable to absurdly expensive. Health care deductibles went from $250 to $6000. Anti-trust law stopped being enforced etc.
https://en.wikipedia.org/wiki/Louis_Philippe_II,_Duke_of_Orléans