public speaking job

I learned what to do public speaking for business is very profitable. Do you know if this is true?
I wonder how the research is passing of these jobs in oratory, and a typical title for this work would be.
Here are some links. There are many jobs, even more names and titles. Here the challenge. Most people in the industry had at least 10 years and 15 years generally get where they were making money. Then he begins to speak in public now. There are several ways you can start talking, and even paid for it. If at the beginning, not expected not get a lot. Once you learn how to wow an audience, provoking management, overcoming adversity and keep an audience that is half asleep then you should start at $ 2,500 per speech. Best wishes.
confidence -pass exams, public speaking, job control etc.