If socialism fails unless our leadership forever consist of true believers, then I fear for our future. But yes, we have a problem with passing on a revolutionary fervor. I would think the hope is that we can build incentive structures that result in everyone having motivation to continue building socialism. But on that I have no answers.

And as harsh as I am being on Rodriguez, I do not believe we can confidently say that Venezuelan socialism is yet a totally failed project (And if what you meant is that Venezuela has only failed in passing on the revolutionary fervor, I would say that there does seem to be some people committed to the cause, it just doesn't seem to me to be their head of state). I can only say that removing Maduro has greatly been to the US' benefit.