But this is true of any "producing" profession. Any time you're creating something and "putting it out there", there's going to be a huge stream of criticism from every direction. Artists, writers, musicians, engineers, carpenters, etc.--all of their work is constantly under scrutiny by "the customer" and/or "the boss".

Even non-producing professions have to deal with constant scrutiny of their performance and negativity. Salespeople might make one sale out of 20 attempts. Anyone in a medical profession is under extreme pressure to not make a mistake (and sometimes things go wrong even when you do everything right).

There are very few professions who don't have to deal with the whole "focusing on the negative" thing (I can't actually think of any). It's pretty much a fact of life that if you want quality, you have to systematically eliminate your weak spots.