Theranos took mortal risks at a massive scale by giving hundreds of thousands of patients inaccurate blood test results that might lead to improper care
That doesn't even begin to describe the extent of malfeasance. John Carreyrou specifically mentions one patient who based on Theranos testing ordered thousands of dollars worth of further medical tests. Their prothrombin time was completely worthless, and people had their anticoagulants adjusted on random numbers. People might have died because of that.