Miele was built on the foundation of quality. All of their products are designed to last 20 years. The founder of Miele was an engineer by profession. Not exactly a marketing or accountant person.
I hope I never ever speak to someone who does product marketing. I will never ever buy a product based on marketing. Never did for the past 30 years. I suppose a good marketing person is someone who is able to convince you to buy rubbish products. I guess in your case, a badly engineered product needs a good marketing person to sell them.