Second, the "self-interest" argument doesn't excuse shitty behavior. It might be in my self-interest to steal my neighbor's wallet he forgot outside. It has money in it! Doesn't make it a good idea nor something I would consider as a "self-interested" person.
Plus, it's also in my self-interest not to contribute to lowering the bar of a review system. As someone who uses Amazon and other review sites, I don't like the idea of phony reviews, so even if I worked for a company that "depended" on these reviews, I wouldn't feel good about adding to the problem (nor would I feel good that my employer supposedly needs to rely on falsified reviews).
But if you start from the realistic premise that some actors are bad, the market feedback loop immediately rewards them - which forces other actors to make a choice between acting in similarly unethical ways or being punished for non-compliance.
The real shitty behaviour is Amazon's. It has ultimate control over this fiasco but Bezos clearly has no interest in stopping it - and it can easily be argued that's an example of the same systemic problem with market fundamentalism, but at a higher level.
Second, the "self-interest" argument doesn't excuse shitty behavior. It might be in my self-interest to steal my neighbor's wallet he forgot outside. It has money in it! Doesn't make it a good idea nor something I would consider as a "self-interested" person.
Plus, it's also in my self-interest not to contribute to lowering the bar of a review system. As someone who uses Amazon and other review sites, I don't like the idea of phony reviews, so even if I worked for a company that "depended" on these reviews, I wouldn't feel good about adding to the problem (nor would I feel good that my employer supposedly needs to rely on falsified reviews).