When something needs to be done in the world to rectify the wrongs, if one is really concerned with benefiting others, one needs to be engaged, involved. This is action out of compassion.
Even if only a few individuals try to create mental peace and happiness within themselves, and act responsibly and kind-heartedly towards others, they will have a positive influence in their community.
Since form is emptiness and emptiness is form, then instead of a hand grasping at nothing, it is better to grasp at someone's nose because this is closer to reality.
When we speak of a calm state of mind or peace of mind, we shouldn't confuse that with an insensitive state of apathy. Having a calm or peaceful state of mind doesn't mean being spaced out or completely empty. Peace of mind or a calm state of mind is rooted in affection and compassion and is sensitive and responsive to others.