Yes, but NPEs are necessary if patents are to be a thing also for smaller inventors.

An inventor can invent things that make a nuclear power plant cheaper or more efficient or better in some other way. He can't control whether the people and organizations who can afford nuclear plants decide to use his invention.

So NPEs are necessary for patents to work for small the inventor, and are how patents work for the small inventor. A small inventor in an expensive field is always a NPE.