"White collar" crimes are nonviolent crimes carried out by people in professional positions of trust. In other words, white collar crimes don't involve directly stealing something, holding someone up at gunpoint or attacking another individual. Instead, they involve some kind of subterfuge, deception or conspiracy carried out by one or more people who stand to gain financially.
Consumers tend to trust large corporations to follow the law and be honest in their business dealings. Perhaps this is because consumers know that if a corporation is dishonest, it will face stiff legal consequences.