The power of a secret
With his sizeable white gown and hair covering his face, Owen wasn't very recognisable to the outside people. Unlike the other family leaders, no one knew what he looked like. Today was the first time the newly appointed head was revealed, and that was only found out to the people in the booth.
Sure, there were some like Quinn and his group who had paid attention to who was sitting in those seats. But none that knew about the situation. When looking at someone so young, they would have never suspected them of being a leader.
The people around outside weren't even paying attention to such a thing that was happening off to the side.
They were far too involved in their own things or the gaming centre that was close by. After learning about Vorden's true name, he had no choice and gave his hand.