A million dollars weighs about a metric ton. Hence the expression "a ton of money."
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Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
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Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
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