Alexander's wealth was frontier money—tribute extracted from newly conquered territories with minimal administrative infrastructure. He was essentially collecting ransom across three continents, which sounds impressive until you realize it's one-time cash grabs from kingdoms that hadn't yet been stabilized into revenue-generating systems. His $750M was real, but it was wealth extraction without wealth creation; he died at 32 before any of his conquest could compound into institutional tax bases that actually generated recurring income.

Napoleon, by contrast, inherited a functioning European tax apparatus and supercharged it. He didn't just conquer—he consolidated. The Tuileries Palace and his personal French estates weren't just trophy properties; they were the physical manifestation of a centralized state that could extract wealth systematically through bureaucracy, tariffs, and legal frameworks. He controlled entire monetary systems, not just kingdoms. That's the difference between being a brilliant military tactician and being a mogul: moguls build systems that outlast them and generate compounding returns.

The real kicker is timing and infrastructure maturity. Alexander operated in an era where wealth meant hoarding gold and collecting taxes in whatever currency each region used—no standardization, no economies of scale. Napoleon operated in an industrializing Europe with banking systems, documented property rights, and centralized mints. He could securitize and leverage his assets in ways Alexander couldn't conceptualize. That 60% gap isn't about Napoleon being a better conqueror; it's about him being a better capitalist operating in a more sophisticated financial era.