Its a classic conundrum and one you have to decide for yourself based on your own morals. I tend to take a ends justify means approach to things but that has been critiqued extensively by people far smarter than I.
These ceos are responsible for killing thousands of people and will kill thousands more in the future. The maths would argue that any action that reduces harm in the future is justified. That then changes ur question into one of what do u value more? Thousands of people dying preventable deaths due to corporate greed or another healthcare ceo being violently stabbed to death after being raped and their family shot and innocent bystanders getting shot?
There is no right answer. All u can do is decide for yourself in a manner u believe is congruent with ur personal morality.
So is qubes the heigh security fence erected around the cows?