Absolutely! Rarely do I become "emotionally invested" in trying to prove I'm (right) or someone else is (wrong). After all there really is no "right" or "wrong". There is only "agree" and "disagree". I can disagree with someone without resorting to insults or name calling.
The moment I realize we're both wasting our time I close things with; "We're going to have to agree to disagree".
If it's a major issue where a decision has to be made to determine the future or nature of the relationship I simply ask myself: "Is this a deal breaker?"
There are only two ways to experience joy and peace of mind in relationships: We either get what we want or we learn to be happy with what we have.