Yes, we've evolved and are smart enough now to exchange items of value and ideas with each other.
Out of 8 different functions, we're evolved enough that individuals may specialize in different career paths tailored to their strengths. If you look at other species, few are intelligent enough to divide work on such an intricate level, and still be a part of a whole group, to the level we as humans are able.
Also, being able to specialize, (I know the speaker in the video mentioned Adam Smith and some economics - GDP per capita), has helped us move much further than the days when kings ordered the work for their kingdom. Putting the decision-making in the hands of the people, so we can think on our own, has helped enormously.