[anonporridge]

And the flatter curve exists because males are essentially the experimental units of a species.

Because eggs are scarce but sperm is abundant, males are largely disposable in the context of a species' or society's collective survival. Therefore, it is advantageous for males to engage in high risk, high reward behavior to keep prodding the environment they live in for changes that might require an adaptation from the group. The result is a flatter curve with more extreme failures and more extreme successes.