All these players are very fine. The players know this, acknowledge this, and say this often. Sometimes we less successful players don't listen to them. On most matters the delegates represent the interests of their members and report back after the event. On important matters the motion must be placed on notice so that clubs have time to determine their reaction and instruct their delegates how to vote.
Some clubs decide by having a general meeting, others by the opinions of their committee.
Very few would be happy for their President to decide without consultation. They are responsible to their members. All important motions are notified months before the annual meeting to give states the opportunity to determine their reactions. Ideally the most important decisions are referred to clubs and even to their membership. We have recently had complaints that insufficient time was allowed for the complete process, so the time has been increased.