On a sun-filled San Francisco afternoon, Peter Szulczewski is climbing the stairs to the top of a Sansome Street skyscraper, past floors filled with Wish data scientists and engineers, pool tables and DJ equipment. Large windows give way to a stunning view of the city. But most of Szulczewski’s customers don’t work in offices like this or live in Northern California coastal enclaves. In fact, most of them don’t have much money at all. Wish’s customers are typically working-class Americans from places like the Florida Panhandle or East Texas, Dollar Store shoppers who find Amazon Prime’s $120 annual membership too rich for their blood……..