What does it mean to voiceless, unheard?

The following two videos give some sense. (It may take a moment to load)

We can speak out, but will we be heard? – Fighting for unheard voices: Ratchanee Saychana from Unheard-voices.org

Extreme poverty is violence 8′ presents the violence of contempt, of being considered useless, of seeing ones rights to learn, to decent housing, to healthcare, to family life being endlessly violated. Sometimes it is aid itself which is so maladjusted that it becomes violent.

Breaking this silence concerns us all. It starts by recognising the courage of those who resist this violence and supporting their efforts. Because these men and women struggle tirelessly to build peace.