You can brew any beer, simple or complex, and some people will taste it and get notes of citrus, stone fruit, leather, coffee, whatever because they are into tasting and analyzing the taste experience. The brewing process doesn't have to be complex to get a myriad of individual flavors that combine to make the overall taste experience. That's just the nature of some people and how they drink a beer.
I like to brew beer that I like and, to some extent, what my friends and family like. I get a lot of satisfaction out of serving my beer to people and hearing them go "holy crap, that's fantastic" or something similar. I feel the same way about my BBQ, my award winning chili, etc.
To that end, my process has the level of complexity required to brew beer that goes beyond good and into "wow". That includes managing fermentation temp control, pH, water chemistry, mash process, yeast management, etc. I like brewing the best beer I can. "Good enough" isn't my goal in anything I do.
That being said, I like my beer better than about 90% of the commercial beer out there. My goal is to get to 100% (which is where I am with BBQ).