That makes no sense. I mean, all you need to do to check if the factory subjects workers to subhuman conditions is send someone from Apple there, look around, and ask a few questions to random employees.
And also, are you really trying to argue that Apple is able to verify and guarantee that their luxury consumer electronics products leave the plant meeting tight quality control requirements but somehow it's impossible to ensure that the same employees who met those quality control specs will have worm-free meals?