Those most directly involved in executions face the greatest self-justification pressure

Evidence

In each of the three prison systems, three groups of prison personnel were studied, each with a different type and degree of involvement in the execution process. Members of the first group, the execution team, perform key roles in the execution itself. They are under the most pressure to justify the morality of their actions to themselves. — Albert Bandura, Moral Disengagement, 2019