the only way feminism might play a role in a ssm...in my opinion is when 1. the woman realizes that she doesn't have to give into the man...that's saying sure she could give in when he wants it if only for physical pleasure but since so many woman can't get the pleasure unless there's some emotional thang going on well then with feminism she can say screw you (and not screw you) to her man.
another way feminism plays a role in the ssm...is when the woman is independant the man may feel less manly and therefore less interested in sex with her.