Most people have the urge to "pee on" every piece of work that goes by them; to demonstrate that they are doing things, to leave some mark that they were part of the results. This is one of the reasons committee projects suck so badly.

This isn't about issues that can be right or wrong or technical expertise, it's about bike-shedding, except there's no argument about the color, there is simply someone changing the color to demonstrate that they can.