If the company is on the downward spiral or is not a tech company, then I think everyone expects control tactics such as dress code to be attempted to drive out the techies. If the company is a new up and coming tech company on the upward climb to greatness then who cares what employees wear. On the technical side, success occurs usually in spite of people that care about dress code, so taking time and expense to impress people is the opposite of what should be done.