So, even though the Ferengi are capable economically, are they a society capable of unity? They lack a centralized military, and employ individuals who are interested solely in their own advancement. Capitalism is successful because it harnesses the inherent greed within us. It allows us to act as is within our nature, unlike communism and fascism. But, the Ferengi take it to an extreme. Could they even act as a cohesive unit in combating threats?
...you have hit on the seminal point, 'Pilly...if threatened, I think deals would be flying faster than a flock of Feluvian FireFoxes, rather than plans for unity, societal success and preservation...