Light Yagami's desire for power and control over life and death in the anime series "Death Note" is primarily fueled by his strong sense of justice and belief that he can create a utopia by eliminating criminals. He becomes disillusioned with the state of the world and sees the Death Note as a tool to rid society of evil and establish himself as a god-like figure who can bring about a new world order. This ambition for power and control ultimately leads him down a dark path of manipulation, corruption, and moral ambiguity.
