Whether someone picked their equipment or had it picked for them, does it matter?

As a sort of interesting sidebar to this conversation, there's a BBC documentary called "Produced by George Martin" which is a very interesting look at his strange rise to fame at his record company largely due to what the Beatles brought to Abbey Road - which had been doing what seemed like mainly comedy albums up to that point in time. Martin and some of those artists go into depth on that discussion and how it helped him produce rock records.