If you really need the resources from another planet, you would be a civil nation and comply with treaties and do things for the benefit of humanity, right?
If you really need something for your market... you don't need to have a private company go up there to have their own monopoly on it and start making profit, that can stay on Universalis! Your government can distribute the resources to companies that produce products from them.
It doesn't mess up your economic system, and people we have minimal control over don't mess up our science!