At the Seattle Summit, the EU, Japan, Canada and the US met in secret closed committees. Other nations weren't invited. This is tantamount to telling them that their interests don't amount to a hill of beans. It's more efficient to meet in smaller groups and reach consensus before trying to get large groups of states to agree. The developing countries' lack of experienced and skilled trade negotiators isn't the fault of more developed countries.
Outcomes depend on negotiating tactics and styles.
There's nothing inherently unfair with the structure of the WTO trading system. In any event, Third World critics should be careful because their complaints embolden American isolationists, who use any excuse to castigate international organizations. Since the LDCs need the rich nations more than the rich nations need them, they should be more amenable to opening their markets. The WTO tramples the dignity and sovereignty of nations. The WTO is an unelected body that governs world commerce.