"In Jewish teachings, any activity that
improves the world, bringing it closer to the harmonious state for which it was created."
Sorry, but this reeks of attachment to this earthly world instead of letting go and looking forward to the Kingdom of Heaven instead.
Also, why the fancy words when you could just tell people "do good" like Jesus did?
Luke 6:35 (WEB)
But love your enemies, and do good, and lend, expecting nothing back; and your reward will be great, and you will be children of the Most High; for he is kind toward the unthankful and evil.
The goal behind doing good is obedience to the Father in Heaven, not "improving this world", a very petty thing in the grand scheme of things. In any case, I am not necessarily against improving the world (even if it is temporary until we make it to Heaven), but that should never be the main goal behind doing good. The goal must always be obedience to God. Improving the world might then occur as a gift from God's grace as a reward to obedience.
Godspeed.