Is the main difference between how Atticus and dolphus Raymond act due to the racism in Maycomb

The main difference between how Atticus and dolphus Raymond act due to the racism in Maycomb is that, Dolphus Raymond is viewed with disdain for associating with African Americans (marrying an African American wife) and is avoided by the community while Atticus represent Maycomb in the Alabama Legislature which brought him respect through out the community. Atticus was courageous for agreeing to defend Tom Robinson (an African American) even when he knows that difficulties will arise for himself and his family, he stood up to Maycomb's prejudice by defending Tom Robinson, he took a stand against racism and thought his children to do the same, while Dolphus is very much ok to protest in silence by feigning alcoholism so that nobody question his choices. Atticus has a perfect reputation, while Dolphus is considered a disgrace for living a forbidden lifestyle.