I am confused, According to wikipedia https://en.wikipedia.org/wiki/Mutualism_(economic_theory) mutalism does not advocate for social ownership of the means of production, so it's not what you meant in the previous comment.
"social ownership of the means of production"
Social ownership: can be public, collective or cooperative ownership, or citizen ownership of equity.
The problem with all of this, is that if someone works better than others, and creates his own "means of production" there must exist someone else who will seize it and distribute it to the collective, otherwise the means will again concentrate at the hands of lucky or more hardworking people.