To delay someone, when put simply, was to find something to distract said person. To find trouble, it was far more convenient for the official to step in than for an isolated individual to do so. Be it to investigate Madam Grace herself, the company under her name, or her people, any of that was enough to cause Madam Grace to treat it seriously. After all, she had skeletons in her closet. Before she could confirm that people had leverage on her, why would Madam Grace allow those potential threats to grow just for the sake of a pile of military arms?
After all, as important as the military arms were, it was not as important as her assets inside the organization.