Evan Spiegel

Snap and no-vote shares. Spiegel turned down Facebook's reported offer of about $3 billion for Snapchat in 2013, and when Snap listed in 2017 it sold shares to the public that carried no votes at all, leaving him and co-founder Bobby Murphy in control. Facebook then copied Snapchat's Stories feature in Instagram, and Snap's shares spent long periods below their listing price, showing independence can mean competing alone against a giant.