Jimbo:
There is wealth in Russia, just as there are poor people. Building a car in Russia builds the economy, improves people's wages, and makes the Ford badge a more common sight. Ford has thought this out just like when they started building Model Ts and marketing them to poor people in the US in 1908.
Sure, it takes time for the economy to pick up and absorb the 250,000 units that the US buys. But the Russian economy could afford 20,000 $12,000 Focuses. People in Russia need a step up from their $6,000 Ladas (of which they make and sell hundreds of thousands each year).