So let's say for a moment that all your dreams come true...LTC is added to Gox...LTC price shoots up, and you sell for tons of USD on Gox...
THEN WHAT? It will just be trapped there with all the other USD I can look at but can't touch.
You cash your LTC in for BTC at gox and transfer out... What's the problem? No more fiat/bank issues.
Also, Btc/Ltd pairs on box will even out the exchanges (same prices).
TC.