- The Gilded Age was defined not by wealth but by widespread corruption in government and business, including insider dealing, bribery, and fee-based governance.
- Railroads were built through subsidies and corrupt partnerships between businessmen and politicians, with 'friendship' meaning mutual back-scratching.
- John D. Rockefeller's Standard Oil eliminated competition by securing railroad rebates and buying out rivals, calling his monopoly 'cooperation.'
- The government supported monopolies through tariffs, information sharing, and suppressing labor, often due to corrupt officials expecting future employment or kickbacks.
- Fee-based governance, where officials kept a portion of taxes or customs, led to rampant corruption from local sheriffs to the customs house.
- Despite material progress, human welfare declined: shorter lifespans, poor sanitation, and high infant mortality due to lack of public health infrastructure.
- Lasting achievements included building public and transportation infrastructure, systematizing knowledge creation (Edison's lab, universities), and establishing expert organizations.
- The Gilded Age's excesses spurred the Progressive era, which viewed society as a machine needing constant management, but this introduced undemocratic tensions.