Many people just want to be proud, or want to make things expensive so their clients are proud. but not always it's like that.
You go on a bit about "pride in complexity" . . What you fail to understand is that many highly intelligent, experienced, very able engineers build systems that are as complex and as large as they _need to be_ and just because you don't deal with such large systems doesn't make everyone else wrong. (Okay, I know, some people are proud, and some people do make bad decisions about large complex systems -- but you make the mistake of assuming everyone does.)
there are lots of skilled engineers here on that forum.
But certainly not the ones that babble about storage, SANs etc.. just because they sell them, have profits from selling them or are just that uneducated.
The wording they use ("everyone do this", "because it is enterprise") just proves that most of them are people that should not even touch a computer.
Sadly that's majority of "specialists" nowadays.