You can run it. The four freedoms refer to the freedoms when you receive the software. You can use GPL software within non-free management software within your

You can run it. The four freedoms refer to the freedoms when you receive the software. You can use GPL software within non-free management software within your company without problems. What you cannot do with the GPL software is distribute it as non-free. That is all. But how you run it for yourself, from yourself, that is up to you.