I'm still trying to flesh this out in a more substantive way but I think one of the aspects of Marx that is misunderstood by people is what the bourgeoisie vs. proletariat dynamic looks like.
I think the emphasis--especially in the neoliberal age of financialization--should be put on the different dynamics of the social relations that people have as they go about their day to day lives.
I think a lot of people take the position---"we'll i've got stocks and a 401k. I'm an investor; I'm a capitalist!"
Um. No, you aren't.
A quick rule of thumb. You might be a capitalist if... you want to invest in some shares of a bank, so you get your assistant to put in a call to the CEO of Bank of America and he quickly calls you back to make a deal.