Wrong. From Forbes:
Richard LeFrak Net worth: $5.6 billion
Stephen Ross Net worth: $4.8 billion
Sheldon Solow Net worth: $3.5 billion
Jerry Speyer Net worth: $3.5 billion
Donald Trump Net worth: $3.5 billion
(source)
Born: June 14, 1946 (age 69), Queens, New York City, NY
Net worth: 4 billion USD (2015) Forbes
Party: Republican Party
So, he is one of the largest. The point is he is not bought and paid for like the rest.