Understanding the subconscious is a tricky subject. And I agree with you. 95% of the time we do have control of our mind. But the problem here is the remaining 5% comes as a reflex due to ingrained doctrines and hormones.

For example feeling of love or hate can stimulate certain response that are out of human control. That's why you see some people take a bullet for someone they love.

However, if we can master control 95% of the time, then that shows true discipline.