I did go to the Lard's University back in the early 70's.
I do not know any real Dagnys in real life.
I am using the name Dagny (Taggart) here because (although my views have changed a lot about the book and author over the years), the character caused me to think as an individual instead of a collective obedient sheep.
You never know who you might run into here on RfM!