Also, our current society is just as degenerate as the ones you mentioned. But that's because we've allowed usury to underpin everything, which is distinctly not Christian.
You get moral decay when the value system is rotten. The parables of Christ have a large corpus of monetary analogies. It's not that money will fix things, it's that money is the value system of this world so maps well onto our hearts' value system. Which is the one Christ calls us to change, which leads to human flourishing
