The criminal liability is in lying specifically about having the PE license, for work that requires it. Nobody is going to prison for calling themselves an "engineer" on their resume when they apply for a job that itself is called "engineer" by the recruiter.
Given that companies like Google have positions for “software engineers” or “engineering departments” and simultaneously hire armies of attorneys, I would have thought this would have come up. *
* Not legal advice or proposed by a practicing attorney of any U.S. state.