I'm wondering why do you think this is true? Using stuxnet as an example, would it not be better if they used every feature within reason that would add to the likelihood of success? Why does reductive elegance make an application of technology superior to an inelegant solution? Does final effectiveness not overrule the developer's aesthetics?

I'm asking in honesty, not using the question to merely attack your opinion. I recognize there are things I have probably not considered.