Taking nothing away from your objective behind this post & agreeing with your point-of-view, I do have 2 points to make:

1. Your definition of Marginal Cost is not right…in Economics marginal cost is the cost to produce an additional unit of a commodity. You are sorta referring to Consumer’s Surplus (…sort of….??)
2. Yes, Capitalism — Liberal Capitalism is giving way (finally) but the scary question is what is the alternative & has it taken strong enough roots? After the Eqypt debacle of premature celebrations of Democracy, I am wary to play cheerleader…transitions are difficult & require visionary leadership.