Maybe you work in a sane company. I work in a company where every freaking VP, SVP, EVP, P and various C wants something different and battles between themselves; all the while we are trying to develop the last thing anyone said, right up until it all changes. We spent 18 months on a single project in which change accelerated over time, every single feature changed in radical ways, and then in the last 3-4 months they insisted that since we hadn't shipped anything we would need to work extra hard on the latest set of things or there would be hell to pay. And then when we got it done anyway cancelled the whole project on the day before the CEO announcement–so they could start on yet another one of these that someone had convinced them was better. Sigh.