Male doctors almost never marry nurses. Doctors in general are from the managerial class, IE listen to NPR and venerate hip pseudo intellextualism. They are the elites of the proles. Nurses are typically from working class backgrounds. IE family of truck drivers, hair dressers, tradesmen, UPS drivers etc.It's a worthy discussion, but I think nursing is mostly just a career that is extremely complimentary to female instincts. Lots of bonus points due to close knit interactions with male doctors (among the upper social strata in the west), which hopefully sets them up for prime mate selection. I'm sure these TV shows play a role, but I wouldn't get too far down the rabbit hole.
To be fair men fall for psyops too. For example, when I tried weed in high school it wasn't because I had a good reason. It was because I saw movies like Dazed and Confused or Pineapple Express and thought I would be cool and have fun adventures like the characters in those movies.It's amazing how easily manipulated they are. If one of (((them))) made a television show about women feeding themselves to wild beasts to help mother earth or some such nonsense there would almost certainly be numerous cases of some stupid young woman going to a zoo & throwing herself into a tiger/lion/bear enclosure in order to "do her part".