You're completely correct, of course. The issue is that most people are not looking for quality, only efficiency. In particular, business owners don't care about sacrificing some correctness if it means they can fire slews of people. Worse, gullible "engineers" that should be the ones prioritizing correctness are so business-brainwashed themselves that they like wise slop up this nonsense at the expense of sacrificing their own concern for the only principles that even made the software business remotely close to being worthy of the title "engineering".