If one of your core principles is Respect, I doubt there is anybody in your team who feels they are not being respectful. Most likely, there are a few who feel they are being disrespected.

If one of your core principles is Customer Centricity, I doubt there is anybody in your team who thinks they are not putting the customer first. Most likely, there are a few customers who think they are not important.

If one of your core principles is Agility, I doubt there is anybody in your team who believes they are slow and unproductive. Most likely, there are a few who believe the team could achieve more.

There’s a moment when concepts, and values, and principles stop being useful in getting people on the same boat.

That’s why you should use (positive) examples instead.