You're not looking in the right place. User installed camera profiles are stored in the user's Library>Application Support>Adobe>CameraRaw>CameraProfiles folder, but unfortunately the users's Library folder is hidden by default in OSX. You can show it temporarily in Finder by clicking on the Go menu while pressing the Opt/Alt key, and the Library will then be available. You can show it permanently in Finder by selecting the user's home directory, then Cmd+J to reveal the View Options, at the bottom put a checkmark in the Show Library Folder item.