Once you get beyond a few instances you'll need a fulltime person to manage your cloud assets anyway. VPC & associated networking + managing different services

Once you get beyond a few instances you'll need a fulltime person to manage your cloud assets anyway. VPC & associated networking + managing different services is not a trivial task. You'll still have an ops team. Whether it's old school sys admins or devops coders is down to your choice of where you run your system.