This image represents my thoughts on how design can act as a conduit for conversation and collaboration (especially when working in contexts/cultures that are unfamiliar). The expert mindset can reduce the opportunity for sustainable solutions. And the expert posture assumes we've nothing to learn from others.
Conversely, when we aim to design a solution or service together, we have the opportunity to imagine alternate possibilities and in turn apply some of these learnings in other environments.
I've put the continent of Africa in my diagram because of how my design work in Rwanda has influenced my ideas on the topic significantly. But I wouldn't limit these notions to what is often perceived as design "over there" or "for development." There is great potential for this way of working to be applied in my own backyard.
This image has been included in this discussion if you have more interest in the topic:
Aid as a conversation between cultures