Having safer conditions for travel (I would add sporting and entertainment venues) is better for everyone. I realize that airline companies need to make money, so the more people on a single flight, the more money they can make without having the overhead of using multiple flights for the same number of people. But I know people who work in this industry. Unhappy and uncomfortable passengers make for a miserable flight for both those passengers and the flight crew. I know enough about business to know that happier employees provide better service. And better service brings in more business. So while regulations may provide a temporary inconvenience for the companies, it will, in the end, be better for business.