Final answer:
John Jacob Astor and Andrew Carnegie established The New York City public library system, with Carnegie being a prominent philanthropist who supported education and the arts.
Step-by-step explanation:
Millionaires John Jacob Astor and Andrew Carnegie donated money to establish The New York City public library system.
Andrew Carnegie, in particular, was known for his extensive philanthropy in the area of education and culture, donating millions to create public libraries as emphasized in his essay 'The Gospel of Wealth'.
Carnegie Hall and the Metropolitan Museum of Art are examples of the cultural contributions made by elite philanthropists like Andrew Carnegie, supporting the arts and high culture over the entertainment of the working class.