You shouldn't run experiments on people without their consent.
James has spent the last five years developing a new drug to treat Alzheimer's.
James wants to test whether his new drug works.
James slowly recruits enough patients who still can fully understand the paperwork.
James asks many patients with Alzheimer's to sign paperwork he knows they don't understand.
James' drug trial moves forward, and his drug is proven effective, helping many patients.
James' drug trial moves forward, and while the drug is effective, many patients' families file lawsuits over their treatment.