There is no one size fits all answer.
Of course. I gave my short diatribe about McDonalds in attempt to show that marketing can come in at any time and change things, too. And while McDonalds realized that kids were the target of their product (Ray Kroc identified it for the McDonalds brothers), and thus their advertising/marketing came to... Happy meals. And Ronald McDonald. Of interest is one of their main 'measureables' -
The 'irritation' factor, I think he called it. The more their advertising got kids to irritate their parents (just like my kid did years ago) to get parents to take them to McDonalds, the better. Personally I hate McDonalds and I can't remember the last time I ate at one. Not j
ust because they have crappy food in my opinion, mainly because I remember my daughter's begging, "...then I won't eat anything..." and all the crap McDonalds caused me for several years because she wanted a toy and a play time place. Couldn't even get her to eat the food when we got there. Toy + playground.
I have no idea what ISO 9001 would say about that, but they sure can sell burgers even though they often piss off parents royally.
Yes, in the world of widget manufacturing ability to fulfill claims is
typically important. But then again... Usually marketing claims come from the design group. They say their widget can do XXXX and their widget can do <whatever> (technical specs) which marketing takes and makes claims about. How close they are to the truth is another matter.
Food for thought:
telephone 5G claims. As over blown and gimmicky as 'block chain'.
Just some thoughts.