Final answer:
Andrew Carnegie contributed to society by donating money to colleges and schools and building libraries across the country. He did not have legislative power to pass laws or close down businesses.
Step-by-step explanation:
Andrew Carnegie, the illustrious steel magnate, implemented several significant strategies to improve society based on the wealth he accumulated throughout his career. He famously adopted a philanthropic approach detailed in his essay, 'The Gospel of Wealth.' Among his notable contributions, Carnegie utilized his money to:
- Donate substantial funds to colleges and schools.
- Construct numerous libraries across the country, which had a lasting impact on public access to education and information.
As for the other options mentioned:
- Carnegie did not pass laws; as a private citizen, he did not have the power to enact legislation such as preventing child labor.
- There is no record of him closing down businesses due to pollution concerns.