Arts and crafts do this because they can depict the world in so many different perspectives, and that can be really beautiful. some people see the beauty in some things and some people in other things but the fact remains that the way people interpret arts and crafts helps to bring beauty into the world which then helps to build a beautiful society
It would be systematic because your not persuading them to do anything and assertive is about your personality. Systematic means to do something according to a plan or system.