In my humble opinion a good quality chef is caring about the food and puts pride in serving nice flavors and food prepared in such manners as it should be. He or she cares about the origin and quality of ingredients and spices.
Most chefs i know treat their knifes as tools and keep them in good order in the same way as a carpenter treats his tools. They are needed to get the job done and not much more.
A great chef has passion and the ability to create new flavors
But then again one of my best friends and also one of the best chefs i know like knifes and cares a bit more, not like me though