No. We sell our services overseas. Most of our education industry (in dollar value) is international. We provide STEM services, legal services, financial services, etc to other countries etc.

Taking a step back there is no difference in your question between a national economy and the entire world economy. 64% of the world economy is services.

So no, services aren’t an inferior category of the economy. Manufacturing is fundamentally a service there are just foods involved. You can fuck up manufacturing by making something you can’t sell for more than it cost to make or even sell for less than it costs to make. This is harder to do with services, or at least feedback is quicker because you don’t hold inventory of services.

So then how do we grow the economy if all everyone is just doing is Services for everyone else. This is the fundamental problem with capitalism. There are only two ways. Population growth and debt. But that’s a lesson for another day.