I ran across this tonight and wondered if I could swap out the word motivation for discrimination.

Maxine Greene "Releasing The Imagination" page 189:
"A person does not fully see or live through the impacts of discrimination unless he or she has desires that discrimination (or poverty, or abandonment) prevents him or her from fulfilling."

In other words my thought was if a student sees no need for motivation then why would they have any. May be I as the teacher have to do something different to make sure there is a desire that provides motivation. May be all I have to do is create the desire and the rest will follow.