You started this thread by saying you want to rebuff some unwarranted claims in this community, now instead of offering rebuttals to other people's stated reasons for belief in bitcoin's usefulness, you have decided to settle with surmising other people's ulterior motives, and called it all about greed and ignorance, very good for you. I guess there is nothing more I need to add.
Don't worry this is nothing against you, it could have been (almost) anybody else here.
In detail you praised BTC as a tool to help people in the third world, and after I argued against it you brushed away my arguments and continued on with your rhetoric.
The reason I call it ignorance is the way Bitcoin is alleviated to some silver bulled using "magical thinking", it is supposed to solve problems it was never meant to be addressing and which it cannot addresses on a fundamental level.
I offered my explanation why your concern is not a concern, it's not rhetoric, there's a market there, and no appropriate payment method exists to satisfy the need of this market, it's a fact, just a fact many people are not aware of.
I have said there are big bitcoin exchanges traded in CNY, and people could pay for their bitcoins with domestic payment system easily, either purchasing through the exchange or the online merchants. I could talk a little bit more about the supply side, for one thing in a populous developing nation there would be many citizens working overseas, and they would often have business/personal issues to deal with in their home country, which would require them to keep a cash reserve of local currency, selling bitcoins is one way to obtain such currency without going through the hurdle of forex exchange(there is actually one filippino guy offering such remittance service on this forum), For another, again in a populous developing nation, there would be a significant number of miners, who would be more than happy to sell their coins they mined locally, even at a slightly reduced rate, to avoid the trouble of withdrawing from Gox.