This is a powerful model that does explain a lot. It explains the fact that there are more well financed organizations of manufacturers than of consumers. If you are satisfied with this level of analysis, again you are not in the market for institutional theory. Or do we just smugly say, if you are a member of a large group your cause is hopeless. If we dare look around, we can observe that in fact some people do contribute to the provision of high exclusion cost goods even when all of the above conditions hold.
Environmentalists contribute to environmental lobbies and funds to save endangered species.
Even farmers have been noted to contribute voluntarily to such organizations as the National Soybean Association. Olson's variables leave him with only two bits of advice. He points to the American Farm Bureau as a case in point. They sell insurance and other inputs and require dues in the organization to get it. Never mind the question of why the buyer in a competitive market will pay extra to buy insurance from Farm Bureau.