Final answer:
Evaluation of evidence supporting the claim that cruelty is a necessary part of leadership based on psychological studies and historical examples.
Explanation:
The evidence used to support the claim that cruelty is a necessary part of leadership can be evaluated based on various psychological studies and historical examples. For instance, the Stanford Prison Experiment and the BBC prison study provide insights into how power dynamics can lead to cruelty in leadership roles. Additionally, historical examples show how leaders throughout history have used cruelty to maintain power, emphasizing the connection between power and exploitation.
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