The difference between the conservative and the liberal on many economic issues is not one of principle but one of balance.
While there are certainly different economic ideologies at play, the simple, over-arching idea of more or less government is not a principle. If I am for more or less government, the appropriate question is "Compared to what?"
Both the conservative and the liberal see a vital need for private enterprise and for government action. Most conservatives still believe in a public school system. They certainly believe in a public military. They believe in public services like fire fighters and police. They believe in certain government regulation of markets. Liberals believe in rewarding creativity and hard work. They believe in personal freedom. They believe in financial markets.
So there is always a mix of socialized and privatized control of production and distribution in almost anyone's economic ideology.
I don't mean to downplay some very real differences on specific issues, but the dominant theme of more or less government is a question of balance rather than principle. And no two conservatives, and no two liberals, have the exact same position on this question. I think remembering this helps to lessen the illusion of a hard binary relationship between economic liberals and conservatives.