Would you help everybody or take the $$$?
The magical genie offers you a choice:
Make all of humanity, including yourself post-scarcity with a lifestyle equivalent to $100K-150K a year, with all needs met. Think Star Trek: The Next Generation without space travel.
Everything stays the same. However, you become the richest person in the world by $1. You get to live a lavish lifestyle of opulence and luxury, but everybody else stays the same.
Edit for specifics:
For option 1:
A replicator big enough to print a double bass (instrument) is put in every home in the world, and the means to create one becomes public domain. People without homes can use one to print out a home sectionally. It can print most food, clothing, musical instruments, digital copies, etc, according to the request or personalisation of the person asking. It can also do the reverse and dispose of anything you put into it. There is a safety to prevent certain dangerous items from being created.
At the societal level, cars, airplanes, boats, ships, etc, manufacturing is completely automated, driving down cost.
At the macro level, the only thing remaining scarce are authentic collectibles and real estate and artisnal products (things made by hand by skilled workers).