BubblesOfBliss, Interesting questions 
I shall be perfectly frank, I don't much care about the troubles of women of the ruling class. Since the formation of class structures with the discovery of surplus, ruling class women have benefited by upholding class society. If it came to a a shoot out they would take your head off! and they would stand firm with the men of their class to protect their elevated status.
This sums up perfectly what I mean
""Power feminism." Feminist author Naomi Wolf best summarized this new approach in her 1994 book, Fire with Fire. In it, she coined the term "power feminism" as an alternative to what she called "victim feminism,"
Wolf admitted that capitalism "does oppress the many for the few," but she argued, "enough money buys a woman out of a lot of sex oppression
Now you can see why Xenia makes me itch!
Sharon Smith Marxist is very interesting on the subject, Lise Vogel (earlier work confused) but Martha E Gimenez is very clear on why she thinks primacy should be given to a Marxist/class analysis.
socialistworker.org/2013/01/31/marxism-feminism-and-womens-liberation Sharon Smith, No I am not a member.
www.colorado.edu/Sociology/gimenez/
As Collins acknowledges (and this is something evident in the preceding sample of metaphors attempting to deal with this issue) "the area of race, class and gender studies struggles with the complex question of how to think about intersections of systems of oppression" (Collins, 1997: 73). One solution, based on the assumption that gender, race and class are simultaneously experienced, is to consider them as "situated accomplishments;" they are not only individual attributes but "something which is accomplished in interaction with others" who, in turn, render these accomplishments accountable within institutional settings (West and Fenstermaker, 1997: 64). From this ethnomethodological stance, people simultaneously "do" difference (i.e., gender, race and class) in the process of interacting with others and, through their "doings," contribute to the reproduction of those structures. As Collins rightly points out, this postmodern, social constructionist analysis that reduces oppressive structures to "difference," leaves out "the power relations and material inequalities that constitute oppression" Gimenez
In other words one perceives sex, class, gender, race difference as comparisons. So I could be gender blind, race blind,sex blind....... in fact I could be totally blind........but I could still be starving, exploited for my labour and lacking social power. The reason for this of course is because there is a net beneficiary to this exploitation. All social power under capitalism is "money power" it is what material advantage will buy you. So I could fit every definition of privilege over the other groups and still be exploited simply because of class. There is the question of racial and gendered poverty but underlying this is still the surplus value of labour theory, which essentially is blind in terms of gender/race. The only benefit to be had by sexism, racism and division of the working class is to divide and obscure social relations, create a class of super exploited people, to use women's reproductive labour, women's unpaid labour and the super exploited.......women and people of colour to undervalue labour and increase capital accumulation.
I would argue that to create a slave class(historically) or as now a class of super exploited (female/people of colour) creates the conditions under which these people have a unifying cause, that of class. If people lack the means of production, the material conditions that lead to social power then none of them have the means of overcoming their oppression. This is why under capitalism we have "liberalism" with its competing but equal oppressions" this is used to the advantage of those who benefit from this system by obscuring the primacy of class struggle in achieving equality for all.
Whilst you could argue that I have privilege over the super exploited, I would draw you to: Alexandra Kollontai who like other Bolshevik women called on men to support the equal wages for women. Having a class of super exploited workers places pressure on wages but also means that primacy is given to hiring the cheaper labour. This is why racism and sexism is of no benefit what so ever to other working class people......only capitalist can benefit from it.