Persuasive Design and Usability: What Is Our Role as Usability Professionals?
http://www.upassoc.org/upa_publications/upa_voice/volumes/2007/june/persuasive.html

Zimmermann, Silvia
Usability Professionals Association
2007

Abstract:

Changing people's attitudes and behaviors for the good could help us to make this world a better place. And turning this world into a better one is one of the key drivers for most of the usability people I know. Most of them don't advocate usability for the money; they want to help make things and consequently life easier.