To profit yes but that makes no sense for this very reason.
Nike contracts these factories right? So they go and make the sneakers with the blue prints they have. All look almost identical minus some flaws.
You're theory states that these factories continue to make them, but then why are the pairs then SO different? Why are 23s stretched and PL high on 11s? EP high on 3s? Overall shoe shape and colors off on a lot of other models?
According to you they are the same workers so wouldn't they all know how the shoe actually looks and have them on point? That's because they are not the same. And don't tell me "it's because nikes QC isn't there" because if that were the case when Nike is there than there will be batches and batches of pairs wasted due to for example stretched 23s and they would lose money.
Conclusion FAKES(keyword) look completely different from authentics. So there is no way they are made by the same people