Used to work with a guy who was a big coke and heroin dealer in NYC during the 80's. Biggest coke customers? Wall street traders pulling all nighters. Said he knew lower Manhattan better than any cab driver. Second biggest customers? Bored house wives, many of which regularly slept with him for free coke. Heroin was supposedly big among surgeons he claimed.

Lawyers are about a third of a percent of the US population, so they certainly could overrepresent. https://www.wisegeek.com/what-percent-of-the-us-population-d...