Ring out the false, ring in the true.
After the cheers have died down and the stadium is empty, after the headlines have been written and after you are back in the quiet of your room and the championship ring has been placed on the dresser and all the pomp and fanfare has faded, the enduring things that are left are: the dedication to excellence, the dedication to victory, and the dedication to doing with our lives the very best we can to make the world a better place in which to live.
What's important at the grocery store is just as important in engines or medical systems. If the customer isn't satisfied, if the stuff is getting stale, if the shelf isn't right, or if the offerings aren't right, it's the same thing. You manage it like a small organization. You don't get hung up on zeros.