You don't get it. If you're guaranteeing someone 1000 fans or 1000 followers, it's meaningless unless those followers are relevant. If my business sells booth materials for trade shows, I want those 1000 fans/followers to be people who are involved with trade shows. Are those 1000 fans/followers you get me going to be relevant to my business? If I have a Youtube video of best practices for your booth, are those commenters going to be those who are exhibitors at trade shows? 1000 Justin Beiber fans viewing or commenting on my video means jack shit to my business.
A potential sale? Again, if these followers aren't relevant to your business, how can you sell to them? If your business is a vegan restaurant in Terre Haute, IN, you want fans/followers who reside in that area and actually have an interest in that subject for them to be of value.
Fan/followers/view/comments are just a tiny portion of a social media/seo plan for a business. It needs to be part of a greater online marketing strategy.
All your services guarantee (according to your post) are real people. Not relevant people, just that the people are real. Any marketer or business owner is well-informed would not be pursuing this as a sound investment.
But like I said, if you find takers, more power to you. A sucker is born every minute. I would imagine most of your clients are unsuccessful businesses trying to gain traction or people who don't understand social media.