In coordination games, cooperation is a Nash equilibrium; in zero-sum games, betrayal is a Nash equilibrium.

Therefore, seek out fields that have not yet formed gatekeeping structures—that is, rapidly growing sectors.
Only when a sector maintains rapid marginal growth will the bad habits of stock competition—selfishness, cronyism, vicious competition—appear uneconomical.
When opportunities are everywhere, competing with others becomes an inefficient choice.
I cannot rely on human virtues, but I can always rely on human economics: most people will choose the path with the least resistance and the greatest benefit, and this can only become a group optimum in growth.
In game theory terms:
Avoid Pareto optimality, embrace Pareto improvement.