Well, my company has only has 4 people full time, so maybe my perspective isn't representative. :) But I've had people who were writing code on a temporary basis get frustrated when things didn't stick to the spec 101% or when there wasn't time for them to follow all the software engineering practices they read about in a book and felt like trying...I understand all that stuff (I've been on both sides of the equation), but what bothers me is when people are inflexible on principle, to the detriment of the business.