They are wrong though. No meal is more important than any other. It's different for everyone and pretending breakfast is the most important for all and sundry is just a marketing ploy with no basis is truth.
Look, I get your point, scheduled meals have been standardized by society as a means of production. You can go to work without having breakfast or even dinner and that's fine. However, when it comes to me, I prefer a big-ass breakfast to fuel my day rather than a big-ass dinner that leaves me a miserable sleep.