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]
(..) when you could make all that dough with a great fella? Me. And then take your gal here for fucking dinner every night of the week? You paid off your debt. Now it's time to profit. This is the fun bit, Baby. By the time this job is over, you'll be rolling in money, buying Maseratis and feeding (..)2017 Baby Driver