Somehow I think people who are depressed or psychosis with a written label are like soldiers who lost the war. I mean life itself is a war as well, our human psyche is competitive at times so in order to improve ourselves and have something to live for.
There have been studies that if you have experienced emotional anguish in your early years, your brain functions like someone who went to war to fight, but not physically.
But I do think we as people have roles to play in society either way, competitive or not.