Arrogance is still with us. Its called #technosolutionism those days. The idea is we don't have to worry because some profit-driven entrepreneur will solve all the adverse repercussions of our out-of-control consumerism.
Its not going to happen, some tech inventions will surely ease our journey towards a sustainable future but the biggest needed change will be to our value systems.
Unfortunately the moral backbone of lost societies, how they held together is hard to revive.