Promotion in the Officialdom: Starting from a Part-Time Job in Food Delivery

When others were changing glasses at the bar, he served food in the rainstorm; when others were writing materials in the office, he listened to the voices of the people in the alleys. How can a delivery boy who was broken up and eliminated from the public service examination step by step reach the pinnacle of power and reshape the officialdom ecology by relying on his capillary understanding of the city?