Saying an argument is not worth your time, when someone else is going to go push the other point regardless, may seem like not giving ground. In reality it's a surrender of a kind.
Discussion
I'd observe this kind of attitude is how a lot of countercultural elements in society never break into mainstream discourse. Because staying out of the mainstream arena becomes a matter of virtue, and it ultimately comes to blunt whatever impact they're trying to achieve.
I see a barbell distribution with that type of attitude on a [losing <-> winning] axis. It can be post-facto evidence of failure. Often due to using the wrong strategy, where no alternative ideas or energy to try a different approach exist.
Or it can be the attitude of the incumbent in the “first they ignore you” stage.