Yes, which is why more people need to vote minor parties and independents if there are good ones in their electorates. Basically our major parties are a bit like the US - the Liberal/National coalition, like the Republicans, govern for the rich at the expense of the poor, and the Labor party (like the Democrats) just maintain the status quo but put a progressive PR spin on it...

At least our voting system actually lets minor parties win seats, which is why I think our Government is at least a bit less crazy than the States.