Everything in the world is for profit, but there are always exceptions. What does it mean?

Literal meaning:

Everything in the world is bustling for profit, but there will be exceptions. Some people do something not for fame and fortune

This A quote from "A Dream of Red Mansions" on 10 Ways to Live in the World: "The most rare thing in life is a close friend, and close friends are the most valuable thing. Everyone in the world is seeking profit, but there are always exceptions.

The original line of the poem comes from: The bustle in the world is all for benefit, and the hustle and bustle in the world is for benefit