Some of the best professional advice I ever received was "Half your job is being liked by those you work for and with, everything else you can learn."

Being right is important in the context of the work you're responsible for delivering on, but so is knowing when to be right, and knowing when not to care if they're wrong. If the decision is outside of your control, document extensively, establish and preserve a paper trail, and move on. "Thoughts, knowledge, and opinions, loosely held."

(i believe that is the point of author's piece; pick your battles, you will not win every one, nor should you try or think of it as winning)