> Hell the thing you're blackmailing doesn't even have to be true, they can just find an ex lover and blackmail that person to say you raped them or whatever, and well even if you beat the charges your kids get tossed into DCS/foster care your life is ruined etc etc.
Someone being falsely accused like this would most likely immediately report it to their boss in the government asking for help. It would be very unlikely that the person would hide it and become an intelligence asset for the blackmailer.
A rational person would immediately report it whether the blackmail was true or not. The penalty for revealing secrets is worse than about any crime except a few high level drug dealing or crimes involving death. If you get fired because you didn't admit to eating a scary mushroom or whatever so be it, the alternative is much worse.
Someone being falsely accused like this would most likely immediately report it to their boss in the government asking for help. It would be very unlikely that the person would hide it and become an intelligence asset for the blackmailer.