The fine isn't really much to Boeing, but the media stories might hurt them a bit. So what's going to happen to those supervisors and managers who forced the Charleston, SC Boeing safety people to ignore the problems? If the FAA pulled self-safety certification responsibilities away from Boeing, that would really get Boeing's attention.
Well, it seems Boeing leadership was in the midst of saving lots of money when everything 737 Max went south. There are 346 people who were sacrificed to those savings and the decentralization of control. As stated by other commenters, Boeing's upper management needs to be swept away and common sense and safety restored.
First thing is to require a check of the terror list before clearing flight line employees. They can get more specific after that. TSA personnel may need lots of rules because they haven't proved they are deep thinkers.