It’s not just about social unacceptability. There are rules of Ethical Conduct.
http://www.abajournal.com/magazine/article/lawyers_are_doctors_too/
He does use the title Dr.
I guess Virginia says it is acceptable.Other states say it is not acceptable.
Originally published in The Forecast, Vol.4, N. 10 July 1997
By
Dr. Herbert W. Titus, J.D.
President of The Forecast Foundation
2400 Carolina Rd.
Chesapeake, Va. 23322
Reprinted by Permission
Which are mixed from state to state, as well as within the ABA itself. From your source:
"The ABA Model Rules of Professional Conduct, which superseded the Model Code in 1983, don’t directly address a lawyer’s use of doctor, nor do most legal ethics codes at the state level. As a result, guidance on the issue continues to come primarily from state ethics opinions.These opinions generally turn on the question of whether using doctor or any other title constitutes a false or mis leading communication about the lawyer or the lawyer’s services. Such communications are prohibited under ABA Model Rule 7.1.
In 1986, a North Carolina ethics opinion advised that referring to an attorney holding a juris doctor degree as doctor “without explanation could be misleading and is therefore inappropriate.”
But in 2004, the ethics committee of the State Bar of Texas abandoned its long-standing position that lawyers may not refer to themselves as doctor in either social or professional settings. In Opinion 550, the committee concluded that the title is not inherently false or misleading. The committee found no reason to prohibit lawyers from indicating their advanced level of education in the same way as such professionals as educators and social scientists.
The committee also concluded that prohibiting the use of the term to avoid “self-laudation” no longer is necessary “in light of state-bar-approved legal specialization and lawyer advertising.”
The committee advised, however, that it may be misleading for a lawyer to use doctor in certain contexts, such as advertising legal services relating to medical malpractice, because of the possibility of misleading prospective clients about a lawyer’s qualifications and the results he or she might achieve. "
I can see how some in society might be "confused" by a lawyer calling themselves a doctor of law...but if a Chemist with a Doctorate in Philosophy can refer to themselves as a doctor, I see no reason why a Lawyer with a Doctorate in Jurisprudence couldn't call themselves one as well. They are both, after all, holders of a "doctorate" degree.
Probably only a matter of time, since it appears the JD degree is only a few decades old, whereas the others are centuries old.