Interestingly, if you watch the original M*A*S*H film, where the song first appears it’s used in a scene where, having failed to dissuade the camp’s dentist (known as ‘Painless’) from his suicidal urges, Trapper, Hawkeye et al effectively fake his suicide to mae him realise it’s not a good idea. But John Beyer was probably more interested in counting the number of times Sally Kellerman’s breasts appeared than noting any moral messages in the film.