Short answers, pulled from the story.
Baby, You're a Rich Man addresses the counterculture concept of non-material wealth, asking who qualifies as one of the 1960s hippie movement's "beautiful people". Lennon summarised the message as: "The point was stop moaning. You're a rich man and we're all rich men." The lyrics have also been interpreted as a comment on fame and as a message directed at the Beatles' manager Brian Epstein.
The song was recorded in a six-hour session starting at 9 pm on the 11th of May 1967 at Olympic Sound Studios in Barnes, south-west London. This made it the first Beatles recording for EMI to be created entirely outside EMI Studios at Abbey Road.
The distinctive oboe-like sound was made with a clavioline, a monophonic three-octave keyboard and an early forerunner of the synthesizer. John Lennon played it on the oboe setting, creating a tone suggestive of an Indian shehnai, and produced the trill effect by rolling an orange up and down the keyboard.
Released as the B-side of All You Need Is Love on the 17th of July 1967 in the United States, Baby, You're a Rich Man peaked at number 34 on the Billboard Hot 100 and number 60 on the Cash Box Top 100.
On the 7th of August 1967, Harrison performed the song in Golden Gate Park in San Francisco's Haight-Ashbury district during the Summer of Love. Press reports compared his impromptu crowd-leading performance to the Pied Piper of Hamelin.
David Fincher used the Beatles recording at the end of his 2010 film The Social Network, about the rise of Facebook and its co-founder Mark Zuckerberg. Critics from The Dissolve ranked it among the five most effective uses of a Beatles song in a feature film, noting that the chorus appears to question Zuckerberg as he sits triumphant and alone after building a billion-dollar company.