As one of the five Marquis attendees of the Neville Federation Supreme Council, Marquis Snape could be considered among the few individuals with the highest status within the Neville Federation, even across the entire human world. Although the attending Marquises do not qualify to become the rotating President, they do have the right to submit issues as members of the council. More importantly, they have the power to impeach the President and veto issues. Just like he himself said, with his status, as long as he was willing, such an important meeting would certainly qualify him to attend, even if he wasn't responsible for managing most of the logistical work.