Create new permissions levels in Box to provide more flexibility:

Permissions/ Roles (ie. Editor, Viewer, etc.):

There is no ability to add someone to a folder and allow them to Invite other persons without giving them destructive permissions > Edit and Delete (Editor Role) >

Viewer Inviter (not sure I like the name, but it goes well w/ the previous request) > Upload, download, preview and Invite

This would allow the user to invite others, but not have destructive permissions. I could actually make two new roles and change Viewer Uploader:

Editor Lite > Upload, download, preview, invite, share and edit
Viewer Inviter > Upload, download, preview, invite, and share
Viewer Uploader > Upload, download, preview and share > this a change to a current role > the fact this role can Edit is strange.