Why didn't they do a part 2?
The movie was quite successful, in it Lou does a lot of bad, illegal and unmoral things and nothing happens to him, a part 2 could have had him growing his company and keep pushing the limits and get hurt or shot by a simple citizen in self defense who took him for a criminal kind of thing, which is usually what happens when you push too much or go too far.
Since most viewers actually like and admire him despite his bad acts it would have made a hell of a movie with a cold ending you dont forget.