I've never worked for a company with a sales organization that had a blatant disregard for what we could do, but everywhere I've ever worked there was usually a promise of something that we couldn't quite do out of the box, or a level of speed that wasn't normal. A perfect example would be integration to SSO systems like PingFederate or Tivoli, et al. Maybe the prospective customer needed a certain type of report that wasn't already built in. In the early days it was supporting a different application server than we'd typically been deploying to.

They weren't promising Ferarris when we were building Maseratis, but they were definitely throwing in the undercoating and floor mats. Even now when I'm building and selling my own software products I do it. I literally do it to myself. In the end it helps evolve the product if you make a responsible claim you can get to.