From the exported rule in your question, it seems you already have the [Webform Rules][1] module enabled (a prereq for what follows ...).

You may want to give it a try to *process the results of a [VBO][2] enabled view via [Rules][3]*, whereas your rule performs 2 Rules Actions:

- Load the VBO list that you want to be processed.
- Add a loop to perform a Rules Action, for each row contained in your Views results.

Some more details about the VBO-view you'd have to create for this:

- It should include an appropriate filter for the role to be processed.
- It should have exactly 1 result (row) for each user to be eMailed.
- One of the columns should be the eMail Id (I don't see other columns needed for this to work).

For more details, have a look at the tutorial "[How to process the results of a VBO enabled view via Rules?][4]".


  [1]: https://www.drupal.org/project/webform_rules
  [2]: https://www.drupal.org/project/views_bulk_operations
  [3]: https://www.drupal.org/project/rules
  [4]: http://drupal.placeto.be/question/90