The only "revolution" we're likely to see is an illusionary one wherein nominal tax rates for the rich increase but are more than offset by other means (e.g., tax loopholes, crony-capitalism, flat out kickbacks, bullshit patents for existing drugs/products, corporate welfare/bailouts, regulations for the benefit of existing markets which raise the entry costs for competitive businesses, etc). This, of course, will have the effect of raising the standard of living for the "poor" and lowering it for the working and middle class; because, well, they're going to be asked to pay their "fair share", too, but won't have sufficient capital and/or opportunity to take advantage of the offset mechanisms.
That's the thing about where we are today - the rich and powerful rule by touting their beneficence and goodwill, all while solidifying their positions, preventing others from moving up, and making true revolution all the more impractical. Blame political parties. That's the root cause.