Good conduct, good manners are always a good example worth following. It is to be supposed that prophets have good manners and good conduct. Their example is to be followed not because of any magical value attached to the word prophet but because they are good, exemplary good. So God wants toi point out what good behaviour is, so he shows us what the prophets or other good people in the Qur'an did.
It would be contradictory that people sent by God to preach and show the way should have bad vbehaviour. That does not make sense.
On the other hand to copy mindlessly the way it is said that they did things is idiotic. What is worth remembering and minding is int he Qur'an, the rest may have value from the historical point of view, or even from an spiritual point of view, but whatever we do on that is our own personal choice and criteria and God does not command anything on that.
There are many hadith which make a lot of sense from the point of view of common sense, spiritual and so on, but those for our profit for whatever value we find in them, just like other litterature, for instance Rumi or AbenArabi, or Rabi3a. Those can be very inspiring, but they are no burden upon us to act on them. Same with "good" hadith. They are worth whatever they are worth.
We do not have to use the same kind of shoes as any prophet nor anything like that. That would be superstition, ritualism and ancestors religion. Nothing to do with truth.