He 'profited by' his experience/mistake. [=he learned something useful from his experience/mistake]
The book can be read with 'profit' by anyone who wants to understand how the system works.
We sold the house 'at a profit'. [=we made a profit when we sold our house]
(..) To crack the cells open to their nucleus. All these knowledge, Lucy... I'm not even sure that mankind is ready for it. We're so driven by power and profit. Given man's nature, it might bring us only instability and chaos. Ignorance brings chaos, not knowledge. I'll build a computer (..)2014 Lucy