Better (targeted) advertisement.

To elaborate on another poster, in sales that are both high-value (to warrant extra effort from the advertiser) and not a commodity but with a high emotional value (like buying a home), it would certainly make business sense to ensure that the pictures in the advertising material contain people like themselves, and that requires recognizing race. Minorities respond well to ads that show members of their particular group.

The same goes with many other viewpoints - you might have a version of your advertising material with a same sex couple, but (as e.g. the recent Starbucks ad situation shows) take care that certain groups of more conservative people don't get that ad but get some other version.