1. of, pertaining to, or characteristic of Faust: a Faustian novel.
2. sacrificing spiritual values for power, knowledge, or material gain: a Faustian pact with the Devil.
3. characterized by spiritual dissatisfaction or torment.
4. possessed with a hunger for knowledge or mastery.
The Faustian society would stop at nothing to gain riches.
(If someone wants to use it in a better sentence, I'd greatly appreciate it. I know that this one isn't great)