As Mottie pointed out, many migrant workers are taken advantage of and poorly housed, just so we can get cheap food. If working conditions and wages were increased, there may not be the need for migrant workers and indigenous unemployed could do the job ( only if it paid enough to get them off, or reduce their benefits). Yes, we would have to pay more for food, and then perhaps it would be appreciated more, and not thrown away. Primark is another example (other companies are the same) cheap clothes and other goods which end up in landfill as it's cheap enough to be disposable, a pair of shoes worn half a dozen times, then binned. I remember Asda doing jeans at £3 a pair, not worth washing them at that price.