The first that I can think of our book authors, especially novels of different genres, it would be extremely impossible for them to create an appealing story without their imagination month apart from them visual artists need to use their imagination because they have to translate ideas and emotions into visual mediums from their imaginations.
Also, we have designers such as interior designers web designers fashion decisions, just to name a few without their artistic imagination.
They won't be able to come up with eye an eye-catching idea that people would love plus we have scientists engineers Architects photographers and so on.