I'll be honest, too low or too high to a company that's making billions of dollars--how high can you raise them?
Do me a favour. Change the law about how much money you can get in tort suits. Make it like Louisiana, $100 billion, and they'll obey the law. That's the problem with administrative penalties, because quite often they simply become a cost of doing business. Hopefully the culture will change more than the administrative penalties will change them.