Actually, she is in the 0.1% elite and got her money the true American way by inheritance, marriage, and political corruption:
"On January 20, 1980, in San Francisco, California, finance capitalist Richard C. Blum (born in 1936) and the ambitious Democratic Party politician Dianne Feinstein (born 1933) were married in a wedding ceremony at San Francisco City Hall. This marriage created a family economic and political alliance that in a little over a decade would allow them to become the top power couple in the state of California with a place on the national and world stages. They remain at the pinnacle of power today, he as a billionaire financier, speculator, real estate executive and deal maker; she as the senior Senator (California’s highest federal official), from the largest and most powerful state in the United States. They exemplify power as it is now wielded in the higher circles of the class system of the U.S. today, and illustrate well the dismal results of this system. This system is best characterized as a plutocratic kleptocracy, completely lacking in authentic democracy, operated by and for corporate racketeers, in short, a dictatorship of big capital, the top 1% of wealth holders, which makes up a ruling class. "
More background here:
http://www.foundsf.org/index.p... ... and here: