Simply this is ads campaigns system and made for users not you as admin.
You as admin add ads from admin panel -> system ads which will be shown all the time for all people even you.
Ads campaigns system is made for users only and the author of the ads will never see it (otherwise you will be paid to see your ads not logic).
Plus it will target a small group of people to see it you will need to have account in the target audience to see it.
Check our new Sngine Advanced Ads System demo