This feels morally like they created house-elves, then sold them to a company
that doesn't know they're people, without due diligence to check they wouldn't be mistreated. Not thinking about it that way seems believable when first thinking of the idea, but clearly at
some point they realized they were making intelligent beings and selling them into potentially abusive conditions, or they wouldn't have taken precautions. They wouldn't have a lot of leverage at that point to dictate conditions (since they went to the company, not vice-versa), and sunk cost fallacy could apply (or positive framing).
The reactive approach of magical monitoring and retaliatory spleen removal just doesn't seem sufficient, but at that point they would have made compromises on compromises, so perhaps it looked like the best option.