The tower of Babel ist the biblical prime example, what happens when people can not work together. Therefore the tower of Babel is the counter-example to collaboration.

That it doen't work  without collaboration is known since biblical times

To form a contrast to the tower of Babel, the oportunities of collaboration must be shown. For example:
What happens, when people can not work togehter is known since a long time- now you can use the potential of collaboration even for smaller projects than the tower of Babel."