This is a great scene and the use of the long shot helps to create a continuous narrative that is augmented by music, props, other characters, and lighting.
The mis-en-scene here is what contributes to the overall feeling that the main character is an important guy–and with any knowledge of the American mafia one can easily extrapolate that this is a mobster. The clues given are the style of clothing, the way the man interacts with workers (tipping, slapping on the back) as well as they way they interact with him (preferential treatment, a look of acknowledgment or happiness when they see him). Additionally the lounge atmosphere is created by low overhead lighting and ambient lighting (provided by the lamps on the tables).
Overall, the viewer gets the sense that this is a man with money and power.