Snorgy, you're exactly right as usual, but since I've never been accused of being particularly bright, I can't resist this one....
First, to ddudley88....kudos to you as a younger engineer for recognizing the threat this can be to our profession.
Indiscriminate use of the term "engineer" is a problem that even the licensing boards don't properly recognize. In certain disciplines of our profession, having a degree in engineering does not give one the right to call themselves an engineer. Many state laws, as jboggs pointed out, protect the term "engineer" and its variants. This is necessary as many pseudo-engineering or related technical "trades" routinely usurp the term "engineer" to imply that they are have more to offer than they actually have.
There are legitimate uses of the term "engineer" by non-licensed engineers. As far as I know, each state in the US recognizes exempt industrial classifications of engineers who are not required to be licensed but are truly engineers in their education and function.
As for the licensed professional engineers, this is usually where the rub takes place. If you offer engineering services to the public at large, without regard to the discipline, all states in the US require licensing so as to protect the health, safety and welfare of the public. This is a good thing. These are the engineers who are known to the public (civil, structural, mechanical, electrical, metallurgical, welding, etc.) and are required to meet requirements of the state's laws for qualifications to practice in the public realm and are held to practice standards that all licensed engineers must meet. When an air conditioning company that employs only air conditioning mechanics (not mechanical engineers specializing in HVAC system design)calls themselves "Air Engineers" or similar, they are usurping the term "engineer" to imply to the public that they have qualification they don't actually possess. The public views engineers as being a bit smarter than the average bear, so to exploit this public perception of engineers is perpetuating a fraud upon the public.
Ok...I'll get off the soapbox before I really get started!