A bald faced, thoroughgoing, total scam. I am not claiming that the chemists and lab techs knew that but the principals did.
Do you claim the chemists, lab techs, and the people who developed the device did not know what the devices did? Are you saying they devoted years of effort to machines that did not work at all, and could not be used to analyze blood? That would be a bald faced, thoroughgoing, total scam. On the other hand, if the device worked somewhat, and if the scientists and engineers working on it felt that it might be an important contribution to the technology, that would not be a bald faced, thoroughgoing, total scam. It would a mistake, or a failed product. It would be that no matter what the principles said or did.
Perhaps you think the scientists and engineers were in on the scam, and they knew the machine did not work at all. Or, perhaps you think the scientists were deluded somehow, and they thought the machine worked, but it didn't.
It seems to me you have a black or white view of events. You seem incapable of understanding that what happened at Theranos was a mix of events, and that different people played different roles, and saw it in different ways. Some were engaged in a scam. Others were trying to do good science and good R&D. It is complicated, but to you, all things are simple.