While I can see the reasoning behind this mentality, I have a hard time supporting it unequivocally. Too many times I've come across what really feels like eng

While I can see the reasoning behind this mentality, I have a hard time supporting it unequivocally. Too many times I've come across what really feels like engineer / developer arrogance vis a vis their end users. The notion that the customer "doesn't know what's good for them" has a bizarrely patronizing air to it. If the customer is happy, then the product has done it's job. Doesn't mean it can't be improved - but perfection comes after the customer has quit bitching.