Collaboration doesn’t mean that we give up ownership of our individual work. In fact, true collaboration means that individuals maintain a stronger ownership of their responsibilities.
In a truely collaborative culture, people are able to freely ask for assistance and feedback at the moment they need it, receive feedback free of criticism or opinion, and then decided what to take on board or not. With everyone doing the same type of sharing, we each individually move the whole forward.
In a non-collaborative culture, people feel they need to over-protect their ownership. They hide their work from others while it is incomplete or until they feel it is ready for approval or acceptance. At which point it is critiqued and possibly rejected. With the result that often effort is wasted.