Big pharma doesn’t have the resources to shut down breakthroughs.  If you like to judge everybody by their potential lowest levels of ethics, consider this point. Dying of a cancer or better yet, a widow maker MI generates far less income than keeping these people alive, treating their chronic illnesses like diabetes, replacing their joints, long-term care and the construction of such facilities and we haven’t even gotten into the trickledown economies of food/nutrition services, housekeeping, laundry.  Rats need garbage and fleas need live dogs.