What makes lex luthor a unique intellectual villain?

The available verified evidence includes a knowledge graph entry for Thor and a Wikipedia article about Superboy, which details the history and settings of the Superboy character. Neither source mentions Lex Luthor, his characteristics, or his role as an intellectual villain. Without relevant source material, it is not possible to accurately describe what makes Lex Luthor a unique intellectual villain. Additional reliable sources would be required to answer this question.