Let’s turn the clock back to the origin of the suit. In the 17th century King Charles II took some influence from King Louis XIV of France. He rather liked the look and decided that his Court Men were to dress the same way.
Appearance and Attitude. The first impression you give is generally the way you look, and the second is generally what you say and how you act. These two go hand in hand, with one often being a reflection of the other.
Speak like a leader
There is often a tendency for one to over complicate a message one is trying to convey by using complex vocabulary and in-concise sentences aiming to sound superior and establish an air of dominance.
People like to use big words and long sentences to sound clever.