Again… To do that, you need to classify everyone accordingly as elite or not, which is subject to systematic error. Which is why we should just choose not to do it, since the death penalty is irreversible, and killing an innocent person runs counter to the way in which a liberal democracy chooses the values that structure its justice system - that is, that we prefer to run the risk that a guilty person go free to avoid, as much as possible, that an innocent person suffers.

If you prefer a justice system built on different fundamental values, maybe you prefer China, Russia or Saudi Arabia.