No one seems to care about quality. It's all about price. In the "Cheap, fast, quality triangle - pick 2" society has moved hard towards cheap, fast. Companies don't even want to cater to anything else.
Perhaps that’s because quality is hard to measure in terms of numbers.
What gets measured gets optimized. And price is the easiest to measure.
Everything else is murky to measure, and often delayed as well (like how long a tool lasts, or what that food will do to your health, or what the company will do with your data once you’ve used their app for a year or two).
And on Amazon, what gets measured is impressions and ratings. Hence, as a seller, you get wiped out of you do not invest time and money into gaming the ratings. Honesty and quality not only does not pay, it also gets proactively penalized.
The “evil” here truly is Amazon, for they, in their walled garden, really do control what gets measured. They could prevent or penalize fake reviews. But they chose not to do so.
Actually, I wonder if Amazon could be sued by the FTC precisely because of this behavior. They are profiting from false advertising, namely false testimonials. If you did this on your own web shop, you’d certainly get sued.