In a well regulated capitalist environment, those drives are yoked in a way that the paths through which you become rich and powerful and sexy are the same paths through which you improve the lives of others around you.
In a poorly regulated one you get dupont and enron, but show me a silver-bullet government theory and I'll show you an unrealistic fantasy.
>A mindset of "greed is good" and "it's okay to be self" does not even try to understand the difference between "need" and "want"
You're assigning that. Honestly I don't think most of Ayn Rand's critics have read her books.