I try not to bag on the creative process of other musicians...
I hear you - and I wanted to expand on this idea and expose my snobbery.
I, and many of my peers, started studying music in our childhood and throughout our formative years were taught a huge variety of styles, how to read, compose and perform by studying other artists openly and unashamedly.
As an older musician I found that peer group to be quite small and most of the people I ran into who were 'musicians' were self-taught and relatively musically illiterate. Yes, they could wail on guitar, but anyone who teaches themselves one very specific and narrow thing can become quite impressive doing that one very specific thing.
What I learned was that communicating in terms of music - musical reference points, musical terminology, the language of music - was all but out the window and I had to learn communicate in 'street music' terms in order to communicate with my new, 'street musician' peers.
I NEVER heard one of my musically trained peers say anything like, "I don't want to be influenced". I've heard my non-trained peers say that sort of thing at one point in or another almost without fail.
What I've concluded is that if you are educated and have a strong musical foundation, the idea that outside influence can 'corrupt' your process is silly. But if you don't have a solid and broad musical foundation or somehow believe that 'your music' is something 'you alone' developed and created, it's quite easy to see how outside influence can steer your process out of your own control.
Those saying such things will more than likely have to admit that they couldn't do what they do today - the could not have developed "their sound" without following the influences that inspired them to become musicians. The idea that they want to shun outside influence now that they've "got
their sound" is almost insulting.
"Thanks for letting me steal from you for so long! Now I'm going to continue to steal from you but no longer give you credit and I'll justify that by the fact that I've simply decided to stop listening to you."