The other side to yesterday's post is that if you can gain control, even just a little, then you should take it. (Assuming, of course, that the cost won't bigger than the gain.) Any little bit that can help you move forward helps.
Any concession you can get from the person with whom you're trying to persuade helps. Any bit of understanding you can create between you and your significant other when arguing helps. Any little bit of attention you can get from social media or the press helps.
Measure the costs, of course, but always strive to move forward. Step by step.