This is precisely where I work at the moment. I always suspected it might've been a US/UK contrast. In UK we like to laugh at ourselves and not take anything too seriously, but being a US company, we get a lot of the "YOU'RE NUMBER 1, WE'RE NUMBER 1, WE'RE THE BEST TEAM WE CAN BE TOGETHER" and to be honest, it's rather cringey.
We're a megacorp who answers to shareholders - they don't give a crap about me and the guy talking most certainly doesn't know who I am, so let's stop the pretense. I've no problem with the pecking order, but don't make out like the company is looking out for my interest.