Karma Yoga

In addition to inner-directed spiritual effort, the ‘karma yoga’ of selfless service is also supportive of the evolution of consciousness. Inner satisfaction becomes more important than worldly gain or the desire to control or influence others. Attraction replaces promotion. Eventually, resistances are no longer related to worldly life and its perceived values.
… Pleasure at gain is replaced by gratitude for the unfolding of the inner process itself. The need for externals disappears spontaneously. The evolutionary process requires less and less effort as it becomes a way of being in the world.

… An unseen benefit of spiritual endeavor and evolution is its positive influence on the collective level of human consciousness itself. Each evolving spiritual devotee counterbalances the negative effect of great numbers of people of a considerably lower consciousness level.

From Discovery of the Presence of God p. 100-102