In my community, the communication factor is very formal and professional. They grab your attention with key concepts. After further research I can now explain why the qualities I stated above are common in the business field. The language tends to be more formal, professional, because you always have to be professional. You would not use slang in any form of business letter, nor contractions. Business letters, similar to essays, require fully developed thoughts and paragraphs. They are not short and quickly discussed like a tweet or a chat message, or even a text message to another colleague. Business communication aims to close the deal on a product and attract customers to that business. Business people don't just write to pass the time, they write with a clear goal in mind and that's what communication is for.