The person who talks the most is the most likely to become the leader
This is quite an entertaining business dynamic I've observed up close for a decade. For example: a PM with less experience and perspective than anybody else in the room, narrating the (long) story of why a certain feature CANNOT be implemented, can rise to power when his/her destiny depends on an upper manager unequipped to judge quality over quantity.
If you are not amused like I was, but you are frustrated, you are in the wrong workplace and you should change organization. Things will not magically improve in the future.