The human culture celebrates competition against one another.
Me against him
Us against them
Groupthink is nothing more than a way to compete with another group when the individual is too weak to compete by itself.
This is problematic and I'm not here to explain why achieving victory by inflicting a loss onto others isn't the most humane thing.
Even the idea of winning a soccer championship is only possible by ruining the dream of an Argentinian kid who wants to get rich to support his family, same for muay thai, kids beat themselves to broken bones for money...investors and traders fight one another to make each other poorer because for one trader to get rich 10'000 need to lose money.
The question is about how to make people more competitive against themselves and less competitive against others.
So how does one achieve that in a society made of clones?
This is the continuation of my other clone question.
The full list of related questions will be found on my profile, this website doesn't allow more than one question at once, and too detailed questions are often seen as filled with excessive filler details and you often see comments reducing a 1000+ word question to "are you basically asking this....?"
So if you need more details, just answer the question in a generic manner, I've often found help from generic answers and even wrong answers. Otherwise, just wait for the full list of questions if you are really anal about following the website frame to absolute godly order and having that perfectionist attitude for your answers.