The account with the largest following on Instagram, at 322 million, is @instagram, the one controlled by the company. It’s fitting, because Instagram holds the utmost influence over the world it has shaped. In 2018, Instagram reached 1 billion monthly users—their second “1 billion” milestone. Soon after, the founders left their jobs. As Systrom and Krieger discovered, even if you reach the highest echelons of business success, you don’t always get what you want.
