The doctrine that people's duty is to promote human welfare WordNet 3.0 & Open English WordNet

Humanitarianism is an active belief in the value of human life, whereby humans practice benevolent treatment and provide assistance to other humans to reduce suffering and improve the conditions of humanity for moral, altruistic, and emotional reasons. Wikipedia

Belief in the value of human life and in actively assisting other humans to improve conditions of humanity Wikidata

The view that all people should be treated with the respect and dignity they deserve as human beings, and that advancing the well-being of humanity is a noble goal. OmegaWiki