Most lawyers that go into corporate law in New York City, start off at around 125K and can see serious salary increases over small increments of time.
Aside from that specialty, I am not too sure how much the average lawyer makes, but have heard that lawyers practicing criminal law can start off at 50K (insulting, as I've heard criminal law is one of the most complicated forms of law to study and practice).
My analysis was misleading because it used a single average value that ranges over all lawyers; the reality is that the distribution has two peaks (i.e., is bimodal): one with mostly 'public interest' lawyers, and one for the sort of elite lawyer you refer to. Public interest lawyers earn shit for pay ($40-60K) but get loan forgiveness after 10 years of consistent payments -- as long as they stay put in the same type of job, with the same shit pay. The elite peak, meanwhile, hovers around ~160K but represents only 14% of lawyers.
So, add to the fact that the prospective law school student has only a 50% chance of landing a job that requires a JD anyway -- in which case they could have earned a relevant masters degree in the field they
did end up in and make more money that way -- they also face the challenge of avoiding ending up as another piece of lawlerly detritus on the mountain of shit salaries along the left side of the distribution (a challenge which they will fail, probabilistically speaking).
But this just reinforces my initial prescription: people shouldn't go at all unless they are really certain they are above average (the best metric being the schools they can get into), unless they just can't imagine being anything other than a public interest attorney or some such.