Although I agree that "There are plenty of fields where "it won't work" if you lie." But Law? Surgery? are not the examples you should choose, both had plenty of cases where lying did work.
I believe both fields have formalized codes of eithics, tho. you can be disbasrred or struck off the list of licesed practitioners for 'lying'. That being said, their is a continuum on considerations, even professionally. Physicians need to maintain a diplomatic bedside manner; counsel needs to advocate adversarially the strongest position, etc. In these examples, the notion of black and white is best not clung too strenuously. Perjury, negligence, and fruadulen billing, etc of course are at the othe end of the spectrum.
