the greatest weakness in the fight against eradicating corruption is:

The correct answer is not having FCPA-type legislation institutionalized and enforced in every country.

Corruption laws are very difficult to implement because very often nobody really adheres to them in developing countries that have just implemented them since they are used to a system that used to exist before them. In addition, corrupt officials like receiving gifts or money for their services so they often do it even if it's illegal.

Edward Herbert

Explanation: Deism, an unorthodox religious attitude that found expression among a group of English writers beginning with Edward Herbert (later 1st Baron Herbert of Cherbury) in the first half of the 17th century and ending with Henry St. John, 1st Viscount Bolingbroke, in the middle of the 18th century.