I believe that you can kill characters only once, but you can hurt them every day. My model for the screenplay was restoration comedy. The nameless, faceless corporate environment seemed the ideal setting for Chad and Howard to pull off their scam. In the corporate world, people tend to adapt a siege mentality. But at the same time, I think it is ludicrous to think that people who are better educated are likely to be less sexist or racist.
Old tricks die hard.
An education often refines hatred. A lot of people in the '80s and '90s have picked up a couple of diplomas, but it hasn't changed their overall moral structure.