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]
(..) Ah-choo! Catch you later I was going to talk about other trends, but magazine shows, news as profit the historic influence of Entertainment Tonight the danger, the hope the dream, the question Oh! I was going (..)1987 Broadcast News