Don't do something because that is how it has always been done. Often times it is the exceptions to the rules that create the winners.
This is a key factor in your success. Make sure you look your best and that you are being heard. You are what others perceive you to be, make sure they perceive you as you intended.
We are all guilty of this from time to time. We've put others down and focused on all the flaws and problems. It's time make a shift from our criticizing nature and start appreciating what is good and what is working.