If the victim had the option to walk, but did not, then it is his fault for not doing that.

If I know a dog is dangerous, but try to touch it anyway and get bitten - then yes the evil dog bit me, but it was my fault for not reacting to danger. Same way with a abusive company, if you know they are, but still make a contract because it seems convenient, then it is still a abusive company, but your fault for getting into a relationship with them.