I find this important not just as a semantic point, but because it underscores an _ethical obligation_.
If we're engineers, then by default we need to look at engineering ethics.
If we're engineers, then we by default need to recognize our social debt and social obligation.
If we're engineers, then we need to look at engineering processes for making sure we meet the above.
Also if we're engineers it gives us a rich history of groups to draw from—we don't need to make this up as we go!
@hrefna this is the key point, and the reason I'm always hesitant to describe myself or my job description as an "engineer" - as long as I'm not bound by any ethical or professional standards, it doesn't seem right to claim the title.