Overrated: Ronald Reagan, the man who wrecked the economy, raised global tensions, allowed AIDS to run unchecked, bankrupted intercity programs, got involved with Saddam, sold weapons to American enemies and pandered so hard to corrupt American businesses that the practice of rewarding businesses for outsourcing American jobs, firing workers and making risky business practices while cutting funding to people who form the middle class became known as "Reaganomics." The man who made it cool to even think that trickle down funding would increase jobs and not just line the pockets of CEOs and executives. When you see on the news that GE, the 2nd largest company in the WORLD, made 3.2 billion from the government and payed no taxes in 2009, even though they have more workers outside of American than inside, thank Reagan for setting the precedent.
Underrated: Henrietta Lacks, a woman who unknowingly saved countless lives without her knowledge. She died of cervical cancer in 1951, but the tissue sample the researchers took showed remarkable vigor, as the cells wouldn't die naturally. Eventually they learned to clone the cells and use them to study genetics, cancer, AIDS, toxicity and to test medicines. They grew 20 tons of cells out of the small sample they took, and she is possibly the greatest unsung hero of the medical world. Her family never even knew about the sample or how it was used until 25 years after her death.