If you mean rich white Australians then nearly all are highly racist highly conservative tea party style lunatics. There is a real bastard streak in em. We have a party here called the LNP which are your Donald Trump style right wingers (our so called liberals here are the equivalent of USA conservatives ).
Your questions aren't specifc enough, as beyond that core rich maniac power group described above there is a mix of a wide variety of groups. There is a major Labour Party representing workers and the Greens representing growing fringe groups.
The Bureau of Statistics can help you with your other questions regarding religion. My view is that many rich rulers here use religion as a prop only to try to look good. Real religion is not a prop.