As for the buying of banks of programs, I do find that surprising and ironic, considering the nature of the instrument. And I think it results in missed opportunities to develop one's own skill in sound design. But this has nothing to do with right and wrong.
What may be a missed opportunity for some is a discovered opportunity for others. Because I'm a software engineer by profession, reverse engineering things to understand how they work has always been a big part of what I do. There is a wealth of knowledge at looking at someone else's source code, understanding why they made the decisions they've made, and learning something from it (even if what you learn is that your own way of doing things is better).
So, I do the same thing with synth patches. I like to pull apart sounds that others make and understand what makes them sound the way they do (usually with the help of a software editor, since it is often difficult to visualize each parameter setting without it). Also, with editors like the Soundtower or Codeknobs editors for example, you can morph/mutate one patch with another, generate lots of mutations and choose the best-of. For example, if I pick a favorite pad sound from the ones I created, and cross-breed it with a great sounding pad from another sound designer's library, I can let the computer create lots of variations, audition them quickly and select the best-of. It's good for quickly making unique, happy accidents (but very precisely guided ones) which, even though they might not be the final end product, provide tons of raw materials for tweaking and making unique sounds out of.
Then, there are certain sound banks which do an incredible job of recreating famous patches. These are particularly interesting to study and can provide a wealth of sound design knowledge by doing so.
Introducing sounds from outside source also helps fend off a certain amount of "inbred syndrome" (something referred to in the software development world as N.I.H or
Not Invented Here syndrome ). Where all of the sounds our instruments make are limited to the scope of what a single set of ears (ours) believes sounds good. If producing music with the intention of others hearing it, that last sentence is particularly important. This is one of the reasons many successful artists refuse to mix their own music, but rather send it off to a mix engineer -- the simple value of another set of ears on the final output.
One other reason I occasionally buy sound banks is more of just a community support kind of thing, where I like what the person is doing on YT or whatever, like what I hear in the sounds, and more or less just want to help them out.
But I still never use them as-is. By the time I've recorded them, they are undistinguishable from the original, every single time. I'm not even sure I can fully explain why that is, except that it is part of my default workflow.
Anyway... I guess it's a good time to point out that I had no idea this subject would be as controversial as it is when I posted it
