Should supermarkets use ethical suppliers?

Few stories all along the same lines this week, so I figured I'd roll them into one and make it more of a theme. Thank you to John for the interview.
'Several stories this week have highlighted potential issues with supermarket suppliers. In one case, it was revealed that security guards at a major supplier of pineapples in Kenya had killed and injured trespassers, leading Tesco to suspend orders from them, while in another story, a former employee of a Lincolnshire chicken farm described a cover-up wherein the animals would routinely be unintentionally killed or injured, in one instance being run over by a forklift. Should supermarkets play a role in preventing or reacting to unethical practices by producers?'
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[@thomasrivet5494]

Bottom-line, do supermarkets have a wide range choice of ethical suppliers? Financially, how much more do ethical suppliers charge compared to the unethical ones? How much does public opinion have an impact on the supermarkets' final decision? Can the supermarket's justify spending more if only a minority care about the ethics behind it? If only a minority care, whose job is it to educate the public about the fundamental cost of pruchasing from unethical suppliers? On a different level, even if a majority cared, would they themselves have the ability to, or even want to, spend more to keep the ethical bar high? To start, we need to heavily fine the unethical suppliers, otherwise they'll always undercut their ethical neighbours and we'll never see the end of it. Thanks for the video, Neil. Lots to think about. Greetings from Montreal, Canada!

[@NeilWestYT]

Yes absolutely, a far deeper topic than I thought it would be when I decided to make the video. Interventions can be made by the public (i.e. through boycotts), the retailers (i.e. through switching suppliers) and governments (i.e. through fines), and finding the right balance of those approaches is difficult enough before considering the complications that result from their interdependence. Retailers might switch suppliers, anticipating a boycott, when who knows if it would have ever come to pass. Appreciate your interest in the video!