I always remind myself that in Angie's PPP, none of the P's are for "perfect". "Practical" would include being sure you have something to wear and balancing wish-list with availability.
I find it harder than expected to get "high quality" workwear items that are not quite corporate but also not high-fashion/trendy. They may be out there, but there are a lot of brands that don't "get me" (Theory is one) and B&M stores are often skewed toward more casual items--maybe the business wear is mostly online. Or sometimes high-priced items don't have quality commensurate with cost.
For me I have had this ideal at times of each garment superbly tailored, Italian wool or this or that, exquisite construction, wears like iron, yadayada and guess what--not happening!
Though Ann Taylor gets a bad rap, most of my AT wool blend trousers have lasted for years and worn well even when the blend has been reduced to lesser quality.
I think it's still possible to identify the right balance when you see it (meaning try it on) and then, as Ginger said, are you holding yourself to some ideal that's not your own? Quality includes, the right amount of quality for my budget, time constraints, how this garment is usually made & marketed.
If you try on a JJill Wearever top and it fits great and packs well and and feels comfortable and goes with your outfits, but it's rayon-polyester (actually rayon is a type of "natural" fabric, so maybe the wrong example!), do you talk yourself out of it because it's not fine-gauge merino or silk knit?
The key to me is, does it fit great (that's usually possible at a wide range of price points, once you identify the types of fits you like (--+ hemming of course, or small waist alterations. I think those are hard to avoid) and is the fabric comfortable. Fabric comfort is very person-specific and climate-related or office temp-related. For example, I have no problem with polyester blouses in A/C and in fact they're not warm enough! Further, a poly shell, which avoids the hot confining sleeves/armholes, is easily tolerated indoors under a jacket. I like silk blouses but I don't like ones that easily show every spot, and in August, these aren't that comfortable either and are not easily laundered. And is it not what I call "shoddy construction"--stitching askew or , I hate stripes not matched, or shrivels up in the wash, flimsy looking and feeling. That's just a waste of money but is not the same as what I think of as ordinary quality or pretty good quality and sometimes you can't even predict it, even within the same maker, but if you actually can see it looks bad, don't buy it.
That's quite a ramble, but perhaps it somehow addresses your question!