For so long as the Holy Spirit restrains the wickedness of the world, culture can only get so bad, and for so long as Messiah tarries, culture can only get so good. We will not descend into the Great Tribulation of our own accord until God permits it, and we cannot ascend to the consummated Kingdom of God of our own accord in any case.
However, between these two great boundary conditions, there is a lot of play, and between these two great boundary conditions, God calls His people “to do justly, to love mercy, and to walk humbly with your God.”
The Old Covenant shows us that we cannot do the first two, and the New Covenant shows us that when we do the third, we are given the first two as gifts — a heart of flesh in exchange for a heart of stone, as the prophet said.
This has to include God fulfilling in us His very first command: to tend and keep the earth, the root from which all culture springs. To be engaged in glorious culture-building is a gift God gives His people, and always has. There is no real discipleship without it.