Finding the story in a company is a great angle. I’d say you have to be careful with mixing your fiction and business ambitions as many business owners think fiction writers don’t have business sense. I remember Carol Tice saying something similar.
This shouldn’t stop you from being both a fiction writer and a content marketer – you just may want to be careful not to present yourself to strongly as a fiction writer towards a business audience. Of course you can still talk about fiction and what business people can learn from it – as long as you connect it to business goals.
I’m not so sure that I need all of those other blogs.
If you could limit yourself to one or two blogs, then you have more time for guest posting and growing your traffic.
Enchant readers. Woo customers. Win business.