Hinduism: Why is the person who's involved in the advancement of Dharma never pushy?

When someone is Pushy, he/she tends to push his own ideology/thoughts/understanding. Then that person doe snot involve in advancement of Dharma, rather becomes a propaganda without understanding. So a person involved in advancement of Dharma is a keen listener, watcher - Shakshibava, doe snot reject or accept, but gazes, self explores.