Think about this:
He has $2.1 million. After taxes, say, $1.6 million. 10% to the church.
$1.5 million, aboutish. Place that in a bank on 10% interest. You get 100,000 bucks a year. Keep on working for, say, $45,000 a year. But live off of only your annual salary. Eventually, after 10 years of (extremely) simple interest you have $2.5 million. Retire and live off of the interest.
Ken Jennings has got it made... If you can't follow my math I'll explain more but that is the basics of it. Lucky smart bastard...