Putin has killed many men for far less than Prigozhin has already done. He’s living on borrowed time and will get the window or polonium tea treatment soon.
And to think that he was Putin's chef and caterer at Kremlin events. But Prigozhin really became a billionaire via Putin granting him exclusive contracts to provide lunches and food for Russian school children. Not all of Russia, but enough of it. Moscow, St Petersburg and so on.