It's good to be a government contractor -- and profitable, too.Rocket Lab (RKLB 3.29%) -- like the name implies -- is a company that makes rockets.Small, expendable "Electron" rockets, for the most part (although Rocket Lab has plans to test fly a new medium-size and reusable "Neutron" rocket in either 2024 or 2025). On Wall Street, a lot of analysts have pegged the introduction of Neutron as the event that flips the switch on Rocket Lab and turns the rocket company from just one of many unprofitable space ...