Profit :
1 [C or U] money which is earned in trade or business, especially after paying the costs of producing and selling goods and services:
She makes a big profit from selling waste material to textile companies.
A year ago the Tokyo company had a pretax profit of 35 million yen.
Company profits are down on last year's figures.
You don't expect to make much profit within the first couple of years of setting up a company.
He sold his house at a huge profit.
Benefit :
1 a helpful or good effect, or something intended to help:
The discovery of oil brought many benefits to the town.
One of the many benefits of foreign travel is learning how to cope with the unexpected.
He's had the benefit of an expensive education and yet he continues to work as a waiter.
I didn't get/derive (much) benefit from school.
With the benefit of hindsight (= Helped by the knowledge since learned) it is easy for us to see where we went wrong.
SLIGHTLY FORMAL She drinks a lot less now, to the benefit of (= resulting in an improvement in) her health as a whole.