Your questions highlight two totally different ideas that are commonly conflated. The fact that some words have multiple meaning (at least in English) simply makes things worse.
Take the words "quality", "better" or "best". To an electrical engineer, they are not emotional. They have precise meanings, such as greater capacity at the same cost, lower cost for the same capacity, greater bandwidth, lower noise or greater signal strength. IOW, they describe
technical improvements, all of which are precisely measurable and quantifiable. And precision is not just advantageous, it is
necessary. If the spec chart says 219 mV plus or minus 2%, that is
exactly what they meant. So when an engineer uses the word 'quality", they are describing the parameters of a system.
But people on the street use those words, too, and they use them in very imprecise ways. 'That beer is higher quality", or "That speaker sounds better". In that use, the words simply describe someone's subjective
emotional reaction. They don't describe anything technical, not do they adhere to a measuring system. So in that context, saying that something is higher "quality" is meaningless, because emotional (or subjective) descriptions are ambiguous. They have no precise meanings, are not calibrated and are not reproducible. For someone who wants to argue without being pinned down, this is an advantage. When objections are raised, they can simply say, "You don't understand. That's not what I meant".
It's similar to picking out a pretty girl and saying, "That one looks better!". Although your description implies a higher level of
quality, there is no
quantification.
Same words ... totally different applications.
Jim
p.s. - you can't trust opinions, but you
can trust data.