There is no wrong when it is worked out to become a right. Sometimes in construction and design the actual site is not what it was on paper. Plumbing and electric are always a challenge, and walls are seldom truly plumb. A good designer listens to the input of others. Hears what is said and works to the best of their capabilities. A good designer may look like they have all the answers - but a great designer listens to the advice of those trusted advisers and gives credit where it is due.
Boy did I learn alot from mistakes. Mistakes shape us, mistakes show us a better way. And when you learn a better way you learn how to be a better designer. It does, after all, take a team to build a project. The tighter the team, the better the outcome.