Task Analytics makes a distinction between a user and an owner of an organization. Users have restricted access and, depending on their access level, can only view / edit a survey or can't see the survey at all. Owners are allowed to manage users as well as specific actions as described in this document, that will have far-reaching consequences, like deleting surveys and/or responses. More on user levels 

The following actions can only be executed if you're an owner of the organization:

There is no restriction on the number of owners of one account. All owners are allowed to change the access levels of users and other owners. A user needs to be a member of the organization before being able to become an owner.  Learn more about the different access levels by members