In the West everybody recognizes the need for a private sector, pretty much, even the one Socialist group understands this now, and so there tends to be debate about how much public sector intervention you think is needed for a variety of reasons, and there are very important differences on party lines that should be fought out.
According to the Spanish proverb, four persons are wanted to make a good salad: a spendthrift for oil, a miser for vinegar, a counsellor for salt and a madman to stir it all up.