You’re thinking of the liberal/conservative spectrum as a line, which is common simply because political parties have a stranglehold on things and you vote for representatives instead of directly voting for policy. The side effect of voting for representatives is that it inherently ties social and fiscal policy together, because you as an individual don’t have any choices that diverge from that left/right line.

But political policy is really closer to a graph with an X/Y direction. Social policy on one direction, and fiscal policy on the other. You’re thinking of liberal social and financial policy, which is communism. Socially liberal but fiscally conservative is anarchism.