The wealth gap hinges on longevity at the top tier. Streep didn't just earn more per film; she sustained premium pricing across four decades while most A-listers see their per-film rates decline after 50. Blanchett made smart choices balancing art and commerce, but Streep essentially invented the playbook for late-career leverage—studios kept paying $20M+ because she reliably delivered both critical acclaim and box office returns. That's not luck; that's negotiating power compounded over time.

Career trajectory matters more than peak earnings. Blanchett's $15-20M per major role sounds solid until you realize Streep was hitting that in the 1990s and kept raising the floor. By the time Streep turned 70, she'd already locked in decades of peak-rate contracts. Blanchett is still climbing, which is impressive, but she's also strategically chosen prestige over pure commerce—a morally superior choice that's financially suboptimal. Streep never had to choose; she made prestige *and* blockbusters demand top dollar.

The franchise game explains the rest. Middle-earth paid Blanchett handsomely but divided her earning power across ensemble casts. Streep, meanwhile, weaponized character-driven projects and ensemble casts where *she* was the anchor commanding the premium. Think "Mamma Mia," "Into the Woods," "The Iron Lady"—vehicles designed around her star power with backend participation opportunities Blanchett's roles often lacked. The $65M gap is partly seniority, partly smarter deal architecture.