This reminds me of charities and other organizations that only want to bring on experts. I really would like to join something like this but I feel that I'm not an expert in that area. I know I could provide a lot of value and show them ways to look at their problems differently, but I'm not what they are looking for.

I really think people can become experts (to a certain degree) and provide a lot of value and think differently about problems without having years of experience. A great example is the 4Chan user that solved the 25 year old permutation math problem by looking at it from a different lense.

Bringing people together to build their network is great. But I really think there is power in bringing people together who have a desire to change something regardless of how much greatness they think they have achieved.