I don’t think many Americans appreciate the difference between PEng and Engineer, just as the vast majority of people in the UK are unaware of what CEng is or what it represents.Fair one, the term "engineer" alone is not protected, but federally "Professional Engineer" is - and how many people know the difference ?
On top of that it looks like each state has its own licencing system and some prohibit the use of "engineer" without suitable quals.
So in many cases it's a vanity title ?
In the Anglosphere, the term “Engineer” carries the connotation of someone who gets his hands dirty at work and therefore could hardly be described as a ”vanity title”. I would say that companies use the title as a suggestion that the people that hold it have technical knowledge of the product they are selling.
I work for a French company, and we don’t have anyone with the title of Sales Engineer, they are all “Sales Managers”, which is hilarious as none of them manage much more than their expenses.