J. Robert Oppenheimer

As a leader, J. Robert Oppenheimer exhibited exceptional scientific expertise and organizational skills, effectively overseeing the complex and secretive Manhattan Project, which involved some of the world's leading scientists. He maintained a meticulous attention to detail, ensuring the successful coordination of various scientific teams working towards a common goal. Additionally, Oppenheimer demonstrated ethical concern about the consequences of the atomic bomb, later advocating for international control of nuclear weapons as a means to prevent their catastrophic use.