Ideas matter, but they matter when and because they are put into practice. We're seeing rising romanticism around central planning so we're going to have to refight the socialist calculation debate all over again.
In spite of what they say, governments will do nothing about inflation. Even though "money printing" is the real cause of this, governments will just keep blaming red herrings like supply chain problems.
The real world should always be regarded as the best foundation for an economic theory. Yet many mainstream economists think it's fine to ground economic theory in unrealistic assumptions about human behavior.