For myself, I won't get into it, but I have spent the last 40 years living a life of rigorous self-honesty, and self-evaluation. I take daily personal inventory, and often immediately admit wrong and move to correct any errors.
I'm not very competitive. In order to compete, one must win, and when one wins, someone else loses. I have found that we can often work together to achieve far more than is possible alone; no matter how talented and energetic we are. I can be on a team that may be competing against another team, but often, there's no need for competition, and I never compete against my team members.
I've also spent that last 40 years helping others, and being of Service. Many of those I help have been the victims of someone else's competitiveness, so it gives me a good baseline to reflect on what "competition" looks like, on the losing end.
My lack of competitiveness has often been read as weakness. People that know me, know that's not a particularly helpful approach, when dealing with me.
I just find that we get a lot more done, when we stop trying to beat each other, and see how we can use our differences and orthogonal viewpoints as a concrete mix.