I’m sure you’re right, at least to some extent, but let’s not forget that Mad Men is fictional, and from the 21st century, and might not accurately reflect the 1950’s.
One of my favorite scenes:
Peggy: "You never say thank you!" Don: "That's what the money is for!"
It captures a lot of the mismatch in perspective between employer/employee boss/subordinate. You're there to do something for someone who is paying you to do it. That's as far as it goes (despite the constant human pull to perceive it as more).