After Gabby Douglas won gold, NBC aired a commercial about a monkey that does gymnastics and people were outraged. And when people commented about her hair on Twitter, others were outraged. But when Bob Costas (NBC) claimed that the barriers for African Americans in gymnastics have long been torn down, after Gabby won gold, there was a lack of outrage. He further explained that it is psychological barriers that now keep African Americans from competing in the sport. In this way, Gabby is a role model for African American youth who have low self-esteem. This is one reason why racism is powerful - the 'hidden common sense' attitudes/ideologies of whiteness that are left unexamined. In this case, it is the belief that racial inequality is caused by the low self-esteem of the victims of systemic and structural racism.
Here is an interesting take on the matter:
Photo from: http://www.rollingstone.com/culture/news/american-gabby-douglas-wins-gold-in-womens-gymnastics-all-around-20120802