Here I come, the voice of not reason. Is it wrong to hire a model, based on looks? no. Are these jobs 100% about teaching ability? no. Looks is important. Chinese people( usually) think white when they think English. Not really racist since it's a northern European language spoke by mostly white people. So obviously white models will sell the product better. The customers are the racist ones, not the business. They supply what they think the customer wants most.