Additionally, the same blackmail can be brought up again at a later date, giving in to a blackmail can be used as blackmail material in the future (ex: giving information to a foreign government), and giving into blackmail gives the blackmailer (and perhaps others) the information that you are a good target for future blackmail
Additionally, the same blackmail can be brought up again at a later date, giving in to a blackmail can be used as blackmail material in the future (ex: giving information to a foreign government), and giving into blackmail gives the blackmailer (and perhaps others) the information that you are a good target for future blackmail