Over the course of his life, Andrew Carnegie endowed 2,811 libraries and many charitable foundations as well as the internationally famous Carnegie Endowment for International Peace. He also bought 7,689 organs for churches. The purpose of the latter gift? "To lessen the pain of the sermons."
[Fatal accidents in Carnegie's steel mills accounted for 20% of all male deaths in Pittsburgh in the 1880s. Newspaper lists of men killed and wounded each year were as long as a casualty list for a small battle in the American civil war.]