ultra-richist

Someone who is a staunch supporter of the power, current legal rights and alleged merits of the ultra-rich —usually not being an ultra-rich him/herself. (In the US, ultra-rich or ultra-millionaire are households with a net worth of $50 million and upwards).

Many ultra-rich who speak the truth are not ultra-richists. There you have Bill Gates, who said:
"I don't deserve my fortune. Nobody does. It has come through timing, luck, and through people I worked with. I certainly worked hard and I think software has been a beneficial thing, but I benefited from a structure too."