Google tells me that Rick Scott from Florida is the richest at a net worth of $260 million. Which, in the grand scheme of things, isn't all that wealthy.
You seem to be confusing make per year, and total net worth, unless you are suggesting that at 260 million net worth he would have had to make at least 10 million a year or some such.
The top 1% make 500k The top .01 make 18 million.
260 millions put Rick in a world of his own.
Only 16,000 families make at least 7 mlion a year.