Some people rate the price of BTC in accordance to the market cap of certain money transfer companies, or to the amount of annual transfer. Not only is this without reason, it forgets the fact that a remittance requires the buying and selling of the coins. Buy = price up, sell = price down. Thus transfers being made will have little affect on btc price.
The money transfer companies wouldn't always go out and buy the bitcoin, then sell them when the transfer is complete, they would surely have some on demand to perform quick transfers. Right now I am sure that Western Union has loads of foreign currency all over the world for just this reason.
I think the increased usage of Bitcoin would increase the price, along with competition for buying when they first start to buy in.