The average person volunteers very little of their time to helping others. It’s incredibly easy to sit back and complain about things, maintain a cynical view on life, and focus only on the negative aspects of life and human suffering. While there are an insurmountable number of calamities in the world, sitting back and lamenting about them gets you nowhere.
No matter how insignificant you feel your contribution may be, even the smallest iota of positive influence and change you endeavor to send out into the world is worthy of your time and effort. No fight was ever won with a single battle. It’s a “death by a thousand cuts” situation. Every little bit helps.