One female can have about 10 babies. Regardless of how powerful she is. One male can father hundreds. The genetic rewards are there for males only. That’s why it’s only males that take crazy risks to get access to hundreds of women.
And who tends to hold positions of power isn't necessarily 1:1 with who tends to take the most risks, in fact, most of our leaders are usually prone to putting themselves in less danger than those they govern.
If I said Dutch people are taller than Spanish people you wouldn’t start talking about your one tall Spanish friend as a way of disproving my argument.
Something is making you clutch at straws to try to disprove the argument that biology causes patriarchy.
On the second point. Leaders take risks to get into the leadership position. That’s why the lower ranks are taking huge risks.
In most of the other mammals leadership is orthogonal to mating success. For example a pride of lions is a matriarchy. The lionesses are in charge. However there is only one mature male in the pride he mates with all of the lionesses.
Other males will take extraordinary risks to kill that male and take his pride.
