That means they can pay low wages and charge high prices and make a hell of a lot of money, which is why there are so many fucking dollar stores:
pluralistic.net/2023/03/27/w...
That's the most obvious form of value harvesting, but it's not the only one.
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pluralistic.net
Pluralistic: Rural towns and poor urban neighborhoods are being devoured by dollar stores (27 Mar 2023) – Pluralistic: Daily links from Cory Doctorow